Michael Žygimantaitis ( lt, Mykolas Žygimantaitis, pl, Michał Bolesław Zygmuntowicz; before 1406 – shortly before February 10, 1452 in
Moscow
Moscow ( , US chiefly ; rus, links=no, Москва, r=Moskva, p=mɐskˈva, a=Москва.ogg) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 million ...
) was pretender to the throne of the
Grand Duchy of Lithuania
The Grand Duchy of Lithuania was a European state that existed from the 13th century to 1795, when the territory was Partitions of Poland, partitioned among the Russian Empire, the Kingdom of Prussia, and the Habsburg Empire, Habsburg Empire of ...
Grand Duke of Lithuania
The monarchy of Lithuania concerned the monarchical head of state of Lithuania, which was established as an absolute and hereditary monarchy. Throughout Lithuania's history there were three ducal dynasties that managed to stay in power— Ho ...
Švitrigaila
Švitrigaila (before 1370 – 10 February 1452; sometimes spelled Svidrigiello) was the Grand Duke of Lithuania from 1430 to 1432. He spent most of his life in largely unsuccessful dynastic struggles against his cousins Vytautas and Sigismund ...
. In 1435 he led his father's army to victory in the
Battle of Wiłkomierz
The Battle of Wiłkomierz (see other names) took place on September 1, 1435, near Ukmergė in the Grand Duchy of Lithuania. With the help of military units from the Kingdom of Poland, the forces of Grand Duke Sigismund Kęstutaitis soundly defea ...
. After his father's assassination in 1440, Michael unsuccessfully fought against
Casimir IV Jagiellon
Casimir IV (in full Casimir IV Andrew Jagiellon; pl, Kazimierz IV Andrzej Jagiellończyk ; Lithuanian: ; 30 November 1427 – 7 June 1492) was Grand Duke of Lithuania from 1440 and King of Poland from 1447, until his death. He was one of the m ...
for the title of the Grand Duke of Lithuania. At first Michael was supported by
Samogitia
Samogitia or Žemaitija ( Samogitian: ''Žemaitėjė''; see below for alternative and historical names) is one of the five cultural regions of Lithuania and formerly one of the two core administrative divisions of the Grand Duchy of Lithuania ...
, but in 1441 Casimir issued a privilege confirming Samogitia's semi-autonomous status and thus avoiding a
civil war
A civil war or intrastate war is a war between organized groups within the same state (or country).
The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government polici ...
. Until 1447, he was supported by the
Dukes of Masovia
Duke of Masovia ( pl, Książę Mazowsza) was a title born by the sons and descendants of the Polish Duke Bolesław III Wrymouth. In accordance with the last will and testament of Bolesław, upon his death his lands were divided into four to five ...
. In 1448, Michael asked help from the
Crimean Khanate
The Crimean Khanate ( crh, , or ), officially the Great Horde and Desht-i Kipchak () and in old European historiography and geography known as Little Tartary ( la, Tartaria Minor), was a Crimean Tatar state existing from 1441 to 1783, the long ...
. With their help he attacked and shortly took control of
Kiev
Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the seventh-most populous city in Europe.
Ky ...
,
Starodub
Starodub ( rus, links=no, Староду́б, p=stərɐˈdup, ''old oak'') is a town in Bryansk Oblast, Russia, on the Babinets River (the Dnieper basin), southwest of Bryansk. Population: 16,000 (1975).
History
Starodub has been known ...
Grand Duchy of Moscow
The Grand Duchy of Moscow, Muscovite Russia, Muscovite Rus' or Grand Principality of Moscow (russian: Великое княжество Московское, Velikoye knyazhestvo Moskovskoye; also known in English simply as Muscovy from the Lati ...
where he died under unclear circumstances (possibly poisoned) in 1452. He was buried in
Vilnius Cathedral
The Cathedral Basilica of St Stanislaus and St Ladislaus of Vilnius ( lt, Vilniaus Šv. Stanislovo ir Šv. Vladislovo arkikatedra bazilika; pl, Bazylika archikatedralna św. Stanisława Biskupa i św. Władysława, historical: ''Kościół Kated ...
.
At different times Michael was married to two daughters of
Alexandra of Lithuania
Alexandra ( pl, Aleksandra, lt, Aleksandra; died 20 April 1434 in Płock) was the youngest daughter of Algirdas, Grand Duke of Lithuania, and his second wife, Uliana of Tver. Though Alexandra's exact date of birth is not known, it is thought th ...
and
Siemowit IV, Duke of Masovia
Siemowit IV (Ziemowit IV), also known as Siemowit IV the Younger (pl: ''Siemowit IV Młodszy''; ca. 1353/1356 – 21 January 1426), was a Polish prince member of the House of Piast from the Masovian branch, from 1373/74 Duke of Rawa, and aft ...
: Anna and
Catherine
Katherine, also spelled Catherine, and other variations are feminine names. They are popular in Christian countries because of their derivation from the name of one of the first Christian saints, Catherine of Alexandria.
In the early Christ ...
. In total he had three wives, all from Masovia: Anna (died in 1435), Eufemia (died in 1436) daughter of Bolesław Januszowic, and
Catherine
Katherine, also spelled Catherine, and other variations are feminine names. They are popular in Christian countries because of their derivation from the name of one of the first Christian saints, Catherine of Alexandria.
In the early Christ ...