KOUMAR, J. (2025). House of Collalto and Okříšky. Cultural House Okříšky. 4. 6. 2025. Record: youtube video
KOUMAR, J. (2025). House of Collalto. 1 000 Years of the Houses's History. University Centre MUNI Telč. 23. 4. 2025. Record: youtube video
KOUMAR, J. (2025). House of Collalto and Knezice in the 19th and 20th century. Ceremony Room of Chateau Kněžice 16. 1. 2025
KOUMAR, J. (2024). Ethics, Morality and Institutions. Jihlavská medicínská akademie JIMEA, Hospital Jihlava 21. 10. 2024
KOUMAR, J. (2024). House of Collalto in the 20th century. Municipal Library in Brtnice, 10. 10. 2024. Record: youtube video
KOUMAR, J. (2024). House of Collalto in Moravia in the 19th and 20th Century. Castle Brtnice, Brtnice, 23. 6. 2024. Record: youtube video
KOUMAR, J. (2023). Travelling of Aristocracy and the Birth of Tourism. Museum Trencin, Trencin, Slovakia, 11. 5. 2023. Record: youtube video
KOUMAR, J. (2022). House of Collalto and the Bohemian-Moravian Highlands. Jihlavská medicínská akademie JIMEA, Hospital Jihlava 7. 12. 2022
KOUMAR, J. (2024). Travelling and Hunting of Henrik Apponyi. Youtube.com
KOUMAR, J. (2024). Albert Apponyi. Beloved and Hated Politician. Youtube.com
KOUMAR, J. (2023). Rudolf Apponyi and His Twenty-five Years in Paris. Youtube.com
KOUMAR, J. (2023). The House of Apponyi in the 19th Century. Youtube.com
KOUMAR, J. (2022). House of Collalto 6. The Confiscation and Further on. Youtube.com
KOUMAR, J. (2022). House of Collalto 5. And the Brick Jestav. Youtube.com
KOUMAR, J. (2022). House of Collalto 4. Hunting Activities. Youtube.com
KOUMAR, J. (2022). House of Collalto 3. Prince Manfred and Czechoslovakia. Youtube.com
KOUMAR, J. (2022). House of Collalto 2. Second Half of the 19th Century: Prince Emanuel Josef. Youtube.com
KOUMAR, J. (2022). House of Collalto 1. Moravian Domain of the House in the 19th and the 20th Century. Youtube.com
