Prince Michał Kazimierz Radziwiłł (; 26 October 1625 or 26 October 1635 – 14 November 1680) was a Polish–

Lithuania Lithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea, bordered by Latvia to the north, Belarus to the east and south, P ...

n noble and magnate. He is sometimes referred to as ''the first'' Michał Kazimierz Radziwiłł, to distinguish him from the other member of his family to use the name. He held the following titles: Majorat of Nieśwież, Master of the Pantry of Lithuania (since 1652), Carver of Lithuania (since 1653), Cupbearer of Lithuania (since 1656), castellan of

Vilnius Vilnius ( , ) is the capital of and List of cities in Lithuania#Cities, largest city in Lithuania and the List of cities in the Baltic states by population, most-populous city in the Baltic states. The city's estimated January 2025 population w ...

(since 1661),

Voivode Voivode ( ), also spelled voivod, voievod or voevod and also known as vaivode ( ), voivoda, vojvoda, vaivada or wojewoda, is a title denoting a military leader or warlord in Central, Southeastern and Eastern Europe in use since the Early Mid ...

of the Vilnius Voivodeship (since 1667), Deputy Chancellor of Lithuania (1668) and Field Hetman of Lithuania. He was also a starost of Upytė, Przemyśl,

Człuchów Człuchów (, ''Człochòwo'', or ''Człëchòwò''; ) is a town in the region of Gdańsk Pomerania, northern Poland, with 13,350 inhabitants as of December 2021. It is the capital of Człuchów County in the Pomeranian Voivodeship. Location ...

, Kamieniec,

Chojnice Chojnice (; or ; or ) is a town in northern Poland with 38,789 inhabitants, as of June 2023, near the Tuchola Forest. It is the capital of the Chojnice County in the Pomeranian Voivodeship. Founded in , Chojnice is a former royal city of Poland ...

, Lida, Telšiai, Rabsztyn, Choteń, Homel, Oster, Gulbin, and several other towns in the

Polish–Lithuanian Commonwealth The Polish–Lithuanian Commonwealth, also referred to as Poland–Lithuania or the First Polish Republic (), was a federation, federative real union between the Crown of the Kingdom of Poland, Kingdom of Poland and the Grand Duchy of Lithuania ...

. Between 2 May and 18 July 1661, he served as the

Marshal Marshal is a term used in several official titles in various branches of society. As marshals became trusted members of the courts of Middle Ages, Medieval Europe, the title grew in reputation. During the last few centuries, it has been used fo ...

of the ordinary

Sejm The Sejm (), officially known as the Sejm of the Republic of Poland (), is the lower house of the bicameralism, bicameral parliament of Poland. The Sejm has been the highest governing body of the Third Polish Republic since the Polish People' ...

held in

Warsaw Warsaw, officially the Capital City of Warsaw, is the capital and List of cities and towns in Poland, largest city of Poland. The metropolis stands on the Vistula, River Vistula in east-central Poland. Its population is officially estimated at ...

. He married Katarzyna Sobieska, the sister of the

King of Poland Poland was ruled at various times either by dukes and princes (10th to 14th centuries) or by kings (11th to 18th centuries). During the latter period, a tradition of Royal elections in Poland, free election of monarchs made it a uniquely electab ...

John III Sobieski on 16 June 1658. Unlike his cousins, Janusz Radziwiłł and Bogusław Radziwiłł, he was one of the members of the Radziwiłł family who valiantly fought in the defence of the Polish–Lithuanian Commonwealth during The Deluge.

References

17th-century births 1680 deaths People from Nyasvizh Michal Kazimierz Radziwill Field Hetmans of the Grand Duchy of Lithuania Lithuanian vice-chancellors Voivode of Vilnius {{Lithuania-noble-stub