Bohemia wasn’t always a land-locked nation, which may surprise some cartographers. For a short time in the 1th century, one Bohemian king built a chain of power from Prague towards the Adriatic.

How did he do that?

One important clarification, before we get started. Bohemia did not become a neat modern country with a beach. Medieval kings ruled several lands at the same time, even if those lands had different laws, borders and local rulers.

Přemysl Ottokar II, king of Bohemia, ruled Bohemia and Moravia, which is present-day Czechia. He then added Austria, Carniola, and Adriatic-linked lands such as Istria and Friuli. That is why his domains stretched “from Silesia to the Adriatic”¹.

Who was this Ottakar, how did he do this, and is any of it still around to see?

1. Ottakar, the ruler of Bohemia

Přemysl Ottokar II was born around 1230² and died in battle on 26 August 1278³ near Dürnkrut^{4 5} in present-day Austria. During those 50 years, he was a Margrave⁶, a Duke⁷ and a King of Bohemia from 1253 to 1278^{8 9}.

He came from the Přemyslid dynasty, the royal family that had ruled Bohemia for centuries. His father, King Wenceslas I¹⁰, enriched Bohemia by encouraging commerce, art, and architecture¹¹. Ottokar inherited a kingdom that already had money, towns, and political confidence.

His family mattered because medieval power often travelled through inheritance or marriage. While he was still alive, Wenceslas had tried to gain Austria through Ottokar’s older brother, Vladislas¹², who married into the ruling house of Austria¹³. When Vladislas died, Wenceslas turned to Ottokar¹⁴. After a revolt in Bohemia in 1248–1249¹⁵, Wenceslas regained control and pushed the Austrian estates to accept Ottokar as duke of Austria in 1251¹⁶. Ottokar then became king of Bohemia and Moravia after his father died in 1253¹⁷.

This means that different family members helped his status^{18 19 20 21}:

Family link	Why it mattered
Wenceslas I, his father	He made Bohemia stronger and helped Ottokar gain Austria.
Vladislas, his older brother	His death opened the way for Ottokar to become the main heir.
Margaret of Babenberg, his first wife	She connected Ottokar to the Austrian inheritance after the last Babenberg duke died.
Kunigunda of Slavonia, his second wife	She linked Ottokar to Hungary’s ruling family. She was Béla IV of Hungary’s granddaughter and married Ottokar in 1261.

Ottokar gained two famous nicknames: “the Iron King” and “the Golden King”.²² “Iron” pointed to his military strength, especially his heavy cavalry. “Golden” pointed to his wealth and prestige, especially from the silver mines around the present-day Czech city of Kutná Hora²³.

That covers his expansion across Austria, but what about the coast?

2. Bohemian power in the Adriatic?

Ottokar did not march straight to the sea in one move. He built power step by step, through inheritance claims, marriage, war, and political pressure^{24 25 26 27 28 29}:

Year	What happened	Why did it make a difference?
1247	Ottokar became margrave of Moravia.	Moravia gave him a major political role before he became king.
1251	Austrian nobles accepted him as duke of Austria .	This gave him land south of Bohemia.
1252	He married Margaret of Babenberg, sister of the last Babenberg duke.	The marriage strengthened his claim to Austria.
1253	He became king of Bohemia and Moravia.	He now ruled the core kingdom.
1260–1261	He defeated Hungary’s Béla IV at Kressenbrunn and secured Styria.	Styria pushed his power further south-east.
1269	He took Carinthia, Carniola, Istria, and Friuli.	These lands connected his rule towards the northern Adriatic.

The key turning point came at the Battle of Kressenbrunn³⁰ on 12 July 1260³¹. Ottokar fought Béla IV of Hungary and won. His “Iron Cavalry”³² helped drive the Hungarians from the field³³. After that, Ottokar held Styria more securely.

Then came the Adriatic link. In 1269, Ottokar took Carinthia^{34 35} and Carniola, in modern-day western Slovenia^{36 37 38 39 40}. For good measure he also took Istria and gained Friuli^{41 42}, in modern-day northeastern Italy. These places sit around today’s Austria, Slovenia, Croatia, and north-eastern Italy.

In essence, Ottokar connected Prague to the Adriatic through Austria and Carniola. He did not turn Bohemia into a seaside nation, but he created a powerful bundle of lands under one ruler.

Like King Samo before him, Ottakar tried to create a Slavic empire

This explains the expansion, but is any of this still visible today, after 800 years?

3. Changes under Ottokar’s rule

His rule affected towns, buildings, law, Jewish communities, and the balance of power.

First, he built and strengthened towns to support his power in Austria and Styria⁴³. These places still exist today, which means you can still find traces of his rule on a modern map.

Second, he left marks on Vienna. Ottokar started building work at the Imperial Palace⁴⁴ and St Stephen’s Cathedral⁴⁵. He did not build the whole cathedral we see today, but he did get things started on this monumental project.

Third, he shaped law and protection for Jewish communities. Ottokar issued a charter in 1254 for Jews across his lands⁴⁶ and renewed Jewish rights in 1268^{47 48}. The charter gave Jewish communities legal autonomy in civil, religious and domestic matters^{49 50}. Later rulers in Hungary, Silesia, Poland, and Lithuania adopted similar models⁵¹.

Fourth, Ottokar’s fall helped create a much bigger story: the rise of the Habsburgs in Austria. In 1273, the princes of the Holy Roman Empire elected Rudolf of Habsburg as German king^{52 53}. He decided to challenge Ottokar’s authority. This was no surprise since Ottakar was Rudolf’s prime rival for the role of Holy Roman Emperor^{54 55}. In 1276, the defeated Ottokar had to give up Austria, Styria, Carinthia, and Carniola, keeping only Bohemia and Moravia⁵⁶. In 1278⁵⁷, he tried to win back his position but died at the Battle on the Marchfeld near Dürnkrut and Jedenspeigen^{58 59 60 61}.

Rudolf’s victory led to Habsburg possession of Austria and Styria⁶². It was later that the battle gained a reputation as the birth of Habsburg rule in Austria⁶³. This is because once Rudolf defeated Ottokar⁶⁴, the Habsburgs rose from counts to princes. Before long they soon added other Central European lands^{65 66}, which led to centuries of Hapsburg rule.

4. How is this still visible today?

All this is still visible across the old territories of this empire, but it’s not always obvious this is how things started^{67 68 69 70}:

In today’s world	Link to Ottakar, and Bohemia
Marchegg, Bruck an der Mur, Leoben, and Radkersburg	These towns strengthened his rule.
St Stephen’s Cathedral, Vienna	Ottokar began building this key Viennese landmark.
Kaliningrad’s older name, Königsberg	The Teutonic Knights named Königsberg after Ottokar following his crusade in East Prussia.
Habsburg rule in Austria, and Austro-Hungary	Ottokar’s defeat helped Rudolf I secure Austria for the Habsburgs.

This does not mean every modern street or border comes directly from Ottokar. History rarely works that neatly. But his reign shows how a short burst of medieval expansion could change which families, towns, and regions mattered for centuries.

But this does beg another question: how would things be different today if he’d never existed?

5. Alternate history

We should be careful here. Historians cannot run history twice like a science experiment to see what would be different if some changes are made. Still, we can make a few cautious points:

1. Jewish rights had always been contentious throughout history. Ottakar’s legal changes allowed large Jewish settlements to feel comfortable enough to settle down. Without these changes, other regions wouldn’t have done the same and that wouldn’t have led to Jewish communities in central and eastern Europe.
2. While we can’t say that some towns may have never existed without him, we can’t dispute that he founded them.
3. If Ottokar had never expanded south, Bohemia may not have become the strongest power in the Holy Roman Empire for that brief moment. Its rulers would have had less influence in Austria, Styria, Carinthia, Carniola, and the northern Adriatic zone.
4. If Ottokar had not lost to Rudolf, the Habsburg rise in Austria would have been different. This does not mean the Battle of Marchfeld created the later Habsburg empire. But it does mean the immediate result was Habsburg power in Austria^{71 72}. That matters because the Habsburgs shaped Central Europe for centuries and Austria for almost 400 years⁷³.

So the big lesson is not “Bohemia had a beach.” The lesson is stronger: a landlocked king briefly connected Central Europe from Prague to the Adriatic. His success, then his defeat, helped shape the map and power politics that followed.

Conclusion

Přemysl Ottokar II ruled Bohemia, then gathered enough lands for his power to reach the Adriatic. He rose through family claims, marriage, war, and clever politics. He fell when Rudolf of Habsburg challenged him and turned Austria into the Habsburgs’ new base.

Without the Habsburgs, and without the resultant Austro-Hungarian Empire, one can argue world war 1 would have been different. As would the rest of 20th century European history.

References

1. Encyclopaedia Britannica (2026) ‘Otakar II’. Available at: https://www.britannica.com/biography/Otakar-II (Accessed: 10 June 2026 ).[↩]
2. Encyclopaedia Britannica (2026) ‘Otakar II’. Available at: https://www.britannica.com/biography/Otakar-II (Accessed: 10 June 2026 ).[↩]
3. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
4. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
5. Encyclopaedia Britannica (2026) ‘Otakar II’. Available at: https://www.britannica.com/biography/Otakar-II (Accessed: 10 June 2026 ).[↩]
6. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
7. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
8. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
9. Encyclopaedia Britannica (2026) ‘Otakar II’. Available at: https://www.britannica.com/biography/Otakar-II (Accessed: 10 June 2026 ).[↩]
10. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
11. Encyclopaedia Britannica (2026) ‘Wenceslas I’. Available at: https://www.britannica.com/biography/Wenceslas-I-king-of-Bohemia (Accessed: 10 June 2026 ).[↩]
12. Encyclopaedia Britannica (2026) ‘Wenceslas I’. Available at: https://www.britannica.com/biography/Wenceslas-I-king-of-Bohemia (Accessed: 10 June 2026 ).[↩]
13. Encyclopaedia Britannica (2026) ‘Wenceslas I’. Available at: https://www.britannica.com/biography/Wenceslas-I-king-of-Bohemia (Accessed: 10 June 2026 ).[↩]
14. Encyclopaedia Britannica (2026) ‘Wenceslas I’. Available at: https://www.britannica.com/biography/Wenceslas-I-king-of-Bohemia (Accessed: 10 June 2026 ).[↩]
15. Encyclopaedia Britannica (2026) ‘Wenceslas I’. Available at: https://www.britannica.com/biography/Wenceslas-I-king-of-Bohemia (Accessed: 10 June 2026 ).[↩]
16. Encyclopaedia Britannica (2026) ‘Wenceslas I’. Available at: https://www.britannica.com/biography/Wenceslas-I-king-of-Bohemia (Accessed: 10 June 2026 ).[↩]
17. Encyclopaedia Britannica (2026) ‘Otakar II’. Available at: https://www.britannica.com/biography/Otakar-II (Accessed: 10 June 2026 ).[↩]
18. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
19. Storey, G. (no date) ‘Kunigunda Slavonia’, Team Queens. Available at: https://teamqueens.org/kunigunda-slavonia/ (Accessed: 10 June 2026 ).[↩]
20. Gruber, S. (no date) ‘King Ottokar’s Fortune and End’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/king-ottokars-fortune-and-end (Accessed: 10 June 2026 ).[↩]
21. Encyclopaedia Britannica (2026) ‘Wenceslas I’. Available at: https://www.britannica.com/biography/Wenceslas-I-king-of-Bohemia (Accessed: 10 June 2026 ).[↩]
22. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
23. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
24. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
25. Jewish Virtual Library (no date) ‘Přemysl Ottokar II’. Available at: https://www.jewishvirtuallibrary.org/p-x0159-emysl-ottokar-ii-x00b0 (Accessed: 10 June 2026 ).[↩]
26. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
27. Gruber, S. (no date) ‘King Ottokar’s Fortune and End’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/king-ottokars-fortune-and-end (Accessed: 10 June 2026 ).[↩]
28. Encyclopaedia Britannica (2026) ‘Wenceslas I’. Available at: https://www.britannica.com/biography/Wenceslas-I-king-of-Bohemia (Accessed: 10 June 2026 ).[↩]
29. Encyclopaedia Britannica (2026) ‘Otakar II’. Available at: https://www.britannica.com/biography/Otakar-II (Accessed: 10 June 2026 ).[↩]
30. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
31. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
32. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
33. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
34. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
35. Gruber, S. (no date) ‘King Ottokar’s Fortune and End’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/king-ottokars-fortune-and-end (Accessed: 10 June 2026 ).[↩]
36. Encyclopaedia Britannica (2026) ‘Carniola’. Available at: https://www.britannica.com/place/Carniola (Accessed: 10 June 2026 ).[↩]
37. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
38. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
39. Gruber, S. (no date) ‘King Ottokar’s Fortune and End’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/king-ottokars-fortune-and-end (Accessed: 10 June 2026 ).[↩]
40. Encyclopaedia Britannica (2026) ‘Otakar II’. Available at: https://www.britannica.com/biography/Otakar-II (Accessed: 10 June 2026 ).[↩]
41. Gruber, S. (no date) ‘King Ottokar’s Fortune and End’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/king-ottokars-fortune-and-end (Accessed: 10 June 2026 ).[↩]
42. Encyclopaedia Britannica (2026) ‘Otakar II’. Available at: https://www.britannica.com/biography/Otakar-II (Accessed: 10 June 2026 ).[↩]
43. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
44. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
45. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
46. Kieval, H.J. (2010) ‘Bohemia and Moravia’, YIVO Encyclopedia of Jews in Eastern Europe. Available at: https://encyclopedia.yivo.org/article/5 (Accessed: 10 June 2026 ).[↩]
47. Kieval, H.J. (2010) ‘Bohemia and Moravia’, YIVO Encyclopedia of Jews in Eastern Europe. Available at: https://encyclopedia.yivo.org/article/5 (Accessed: 10 June 2026 ).[↩]
48. Jewish Virtual Library (no date) ‘Přemysl Ottokar II’. Available at: https://www.jewishvirtuallibrary.org/p-x0159-emysl-ottokar-ii-x00b0 (Accessed: 10 June 2026 ).[↩]
49. Kieval, H.J. (2010) ‘Bohemia and Moravia’, YIVO Encyclopedia of Jews in Eastern Europe. Available at: https://encyclopedia.yivo.org/article/5 (Accessed: 10 June 2026 ).[↩]
50. Jewish Virtual Library (no date) ‘Přemysl Ottokar II’. Available at: https://www.jewishvirtuallibrary.org/p-x0159-emysl-ottokar-ii-x00b0 (Accessed: 10 June 2026 ).[↩]
51. Kieval, H.J. (2010) ‘Bohemia and Moravia’, YIVO Encyclopedia of Jews in Eastern Europe. Available at: https://encyclopedia.yivo.org/article/5 (Accessed: 10 June 2026 ).[↩]
52. Kaisergruft (no date) ‘The Habsburgs’. Available at: https://www.kaisergruft.com/en/history (Accessed: 10 June 2026 ).[↩]
53. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
54. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
55. Gruber, S. (no date) ‘King Ottokar’s Fortune and End’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/king-ottokars-fortune-and-end (Accessed: 10 June 2026 ).[↩]
56. Gruber, S. (no date) ‘King Ottokar’s Fortune and End’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/king-ottokars-fortune-and-end (Accessed: 10 June 2026 ).[↩]
57. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
58. Prague City Gallery (2022) ‘The Bohemian King Přemysl Otakar II’, Google Arts & Culture. Available at: https://artsandculture.google.com/story/the-bohemian-king-p%C5%99emysl-otakar-ii-prague-city-gallery/FwXxAhdQNOnT6A?hl=en (Accessed: 10 June 2026 ).[↩]
59. Storey, G. (no date) ‘Kunigunda Slavonia’, Team Queens. Available at: https://teamqueens.org/kunigunda-slavonia/ (Accessed: 10 June 2026 ).[↩]
60. Gruber, S. (no date) ‘King Ottokar’s Fortune and End’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/king-ottokars-fortune-and-end (Accessed: 10 June 2026 ).[↩]
61. Encyclopaedia Britannica (2026) ‘Otakar II’. Available at: https://www.britannica.com/biography/Otakar-II (Accessed: 10 June 2026 ).[↩]
62. Gruber, S. (no date) ‘The Habsburgs take over Austria’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/habsburgs-take-over-austria (Accessed: 10 June 2026 ).[↩]
63. Gruber, S. (no date) ‘The Habsburgs take over Austria’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/habsburgs-take-over-austria (Accessed: 10 June 2026 ).[↩]
64. Kaisergruft (no date) ‘The Habsburgs’. Available at: https://www.kaisergruft.com/en/history (Accessed: 10 June 2026 ).[↩]
65. Kaisergruft (no date) ‘The Habsburgs’. Available at: https://www.kaisergruft.com/en/history (Accessed: 10 June 2026 ).[↩]
66. Gruber, S. (no date) ‘The Habsburgs take over Austria’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/habsburgs-take-over-austria (Accessed: 10 June 2026 ).[↩]
67. AEIOU (no date) ‘Ottokar II., Přemysl’. Available at: https://www.aeiou.at/aeiou.encyclop.o/o951048_en.htm;internal&action=_setlanguage.action?LANGUAGE=en (Accessed: 10 June 2026 ).[↩]
68. Kaisergruft (no date) ‘The Habsburgs’. Available at: https://www.kaisergruft.com/en/history (Accessed: 10 June 2026 ).[↩]
69. Gruber, S. (no date) ‘The Habsburgs take over Austria’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/habsburgs-take-over-austria (Accessed: 10 June 2026 ).[↩]
70. Encyclopaedia Britannica (2026) ‘Otakar II’. Available at: https://www.britannica.com/biography/Otakar-II (Accessed: 10 June 2026 ).[↩]
71. Kaisergruft (no date) ‘The Habsburgs’. Available at: https://www.kaisergruft.com/en/history (Accessed: 10 June 2026 ).[↩]
72. Gruber, S. (no date) ‘The Habsburgs take over Austria’, The World of Habsburgs. Available at: https://www.habsburger.net/en/chapter/habsburgs-take-over-austria (Accessed: 10 June 2026 ).[↩]
73. Kaisergruft (no date) ‘The Habsburgs’. Available at: https://www.kaisergruft.com/en/history (Accessed: 10 June 2026 ).[↩]

Remember: links were correct at time of publication.