Jonas Gostautas

Jan Gasztołd
Coat of arms	Abdank
Consort	Dorota Zadora h. Zadora Elżbieta
Family	Gasztołd
Father	Andrzej Gasztołd
Mother	NN Buczacka h. Abdank
Born	c. 1383
Died	1458

Jonas Gostautas or Goštautas (Polish: Jan Gasztołd) (c. 1383 in Geranainys – 1 September 1458 in Vilnius) was a Lithuanian nobleman from the Grand Duchy of Lithuania of the Goštautai noble family, a politician and skillful land owner. He served as Chancellor of Lithuania between 1443 and 1458 and was a very close advisor and mentor to Casimir IV Jagiellon before the Grand Duke became the 3rd Jagiellonian King of Poland. Gostautas was not his surname, but a pagan Lithuanian given name retained after baptism by his immediate ancestor, while Jonas was his Christian name. His heirs, e.g., his sons like Martynas Goštautas, perhaps inherited the name as a surname. In 1413 at the Union of Horodło Jonas was adopted by the Polish nobles into the Abdank clan.

First mentioned in 1413, Jonas Goštautas served as a marshal during the late reign of Vytautas the Great. Following death of Vytautas he continued his duties under Švitrigaila and sided with him against Vytautas' brother Sigismund Kęstutaitis. In 1431 while defending Lutsk from the Sigismund Kęstutaitis' Polish-Lithuanian assault he was captured and imprisoned.

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