Jonas Goštautas

Jonas Goštautas (c. 1393–1458) was a magnate of the Goštautai family in the Grand Duchy of Lithuania. He first served as a marshal under Vytautas the Great and became voivode of Trakai in 1433.

In 1440 he helped the Council of Lords proclaim Casimir Jagiellon Grand Duke of Lithuania against the wishes of Polish magnates, dissolving the personal union with Poland. As Chancellor from 1443, he held power beside the young Grand Duke.

He expanded the powers of the Council of Lords, but after a failed 1456 plot to replace Casimir with Simeon Olelkowicz he died in Vilnius in 1458.