Mikhail III of Tver
Encyclopedia
Mikhail III of Tver or Michael the Exile (1453–1505) was the last prince of Tver.

Mikhail was the son of Boris of Tver
Boris of Tver
Boris of Tver or Boris the Great was a prince of Tver.Boris, the son of Alexander II of Tver, was Grand Prince of Tver from April 22 1426 to his death...

 and Anastasia of Suzdal (d.after 1486). He was Grand Prince of Tver
Grand Prince of Tver
The title of Prince of Tver was borne by the head of the branch of the Rurikid dynasty that ruled the Principality of Tver. In 1247 Tver was allocated to Grand Prince Alexander Nevsky, and became an independent principality...

 from February 10 1461 to 1485. He married Sophia Olelkovich
Olelkovich
The Olelkovich family was a 15th–16th-century noble family from the Grand Duchy of Lithuania. Their main possession was the Duchy of Slutsk–Kapyl; therefore, they are sometimes known as Slutskys. They hailed from the Lithuanian Gediminids and Russian Rurikids...

, princess of Slutsk of Lithuanian origin in 1471 (d.February 6, 1483), then a granddaughter of Casimir IV Jagiellon
Casimir IV Jagiellon
Casimir IV KG of the House of Jagiellon was Grand Duke of Lithuania from 1440, and King of Poland from 1447, until his death.Casimir was the second son of King Władysław II Jagiełło , and the younger brother of Władysław III of Varna....

, and eventually lost the title when Ivan III of Moscow conquered Tver in 1485. Ivan the Younger, son of Ivan III the Great, is by some sources counted as prince of Tver from 1485 to 1490, but may have been without real ruling power.

Mikhail of Tver went to exile to Kingdom of Poland
Kingdom of Poland (1385–1569)
The Kingdom of Poland of the Jagiellons was the Polish state created by the accession of Jogaila , Grand Duke of Lithuania, to the Polish throne in 1386. The Union of Krewo or Krėva Act, united Poland and Lithuania under the rule of a single monarch...

 and Grand Duchy of Lithuania
Grand Duchy of Lithuania
The Grand Duchy of Lithuania was a European state from the 12th /13th century until 1569 and then as a constituent part of Polish-Lithuanian Commonwealth until 1791 when Constitution of May 3, 1791 abolished it in favor of unitary state. It was founded by the Lithuanians, one of the polytheistic...

, trying to regain the throne of Tver, but king Casimir IV Jagiellon rejected.
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