Casimir IV Jagiellon

King of Poland (1447–1492) and Grand Duke of Lithuania (1440–1492)

Casimir Andrew Jagiellon (Polish: Kazimierz Andrzej Jagiellończyk [kaˈʑimjɛʂ jaɡʲɛ(l)ˈlɔj̃t͡ʂɨk] ; Lithuanian: ; 30 November 1427 – 7 June 1492) was Grand Duke of Lithuania from 1440 and King of Poland as Casimir IV from 1447 until his death in 1492. He was one of the most active Polish-Lithuanian rulers; under him, Poland defeated the Teutonic Knights in the Thirteen Years' War and recovered Pomerania. The Jagiellonian dynasty became one of the leading royal houses in Europe.

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