Michał Kazimierz Rybeńko Radziwiłł
Prince Michał Kazimierz Radziwiłł was a Polish-Lithuanian noble. A member of the aristocratic Radziwiłł family, he was frequently referred to by his idiolect Rybeńko (Рыбанька), to distinguish him from the other Michał Kazimierz Radziwiłł. Ordynat of and, owner of Biržai, Dubingiai, Slutsk and Kopyła. He was a koniuszy of Lithuania since 1728, Court Marshal of Lithuania since 1734, Field Hetman of Lithuania and castellan of Trakai (Troki) since 1737, castellan of Vilnius since 1742, voivod of Vilnius and Grand Hetman of Lithuania since 1744. Like his father, he was the starost of a number of towns, including Przemyśl, Bratslav, Kamianets-Podilskyi, Człuchów, Ostra, Krzyczów, Ovruch, Nowy Targ, Parczew, Osiek and Kaunas. On April 23, 1725 in Biala Krynica he married Urszula Franciszka Wiśniowiecka. Later married Anna Luiza Mycielska on January 2, 1754 in Lviv. Awarded with the Order of the White Eagle in August 1727. The treatment of his medical problems included 56 bleedings, 30 applications of leeches, and 13 cuppings. These treatments have been described as illustrative demonstrations of medical interventions available to the wealthy at the time. His former lover was Maria Karolina Sobieska, grand daughter of John III Sobieski.
Personal facts
| Birth date | June 13, 1702 |
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| Date of death | May 15, 1762 |
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| Parents | Anna Katarzyna Sanguszko Karol Stanisław Radziwiłł (1669–1719) |
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