Grandson of Petras Mantigirdaitis, he first appeared in written sources in 1476 and reached his career high in the 1490s, when he was Voivode of Trakai (1490–97) and Grand Marshal of Lithuania (1491–97).
[1] Chronicler Marcin Bielski described that Alexander Jagiellon was crowned and blessed as the new Grand Duke of Lithuania by the Bishop of Vilnius in 1492.
The Bychowiec Chronicle describes how Grand Duke Alexander visited the ailing Mantigirdaitis in Trakai and asked for his recommendations for a successor.
[4] Mantigirdaitis is also mentioned as Hetman in a surviving copy of a donation document by Grand Duke Alexander that Vytas Jankauskas dated March 1494.
[6] Mantigirdaitis' second wife was Anna, daughter of Alexander Alšėniškis[1] or of Fyodor Koributovich [ru], son of Kaributas;[4] they had no children.