Michael Žygimantaitis

Michael Žygimantaitis[1] (Lithuanian: Mykolas Žygimantaitis, Polish: Michał Bolesław Zygmuntowicz; before 1406 – shortly before February 10, 1452 in Moscow) was pretender to the throne of the Grand Duchy of Lithuania and the last male descendant of Kęstutis, Grand Duke of Lithuania.

[2] He supported his father Sigismund Kęstutaitis in power struggles with Švitrigaila.

After his father's assassination in 1440, Michael unsuccessfully fought against Casimir IV Jagiellon for the title of the Grand Duke of Lithuania.

[2] Soon he was captured and transported to the Grand Duchy of Moscow where he died under unclear circumstances (possibly poisoned) in 1452.

At different times Michael was married to two daughters of Alexandra of Lithuania and Siemowit IV, Duke of Masovia: Anna and Catherine.

Prince Michael (as depicted in the Illustrated Chronicle of Ivan the Terrible )