King of Poland Casimir IV Jagiellon

Casimir IV Jagiellon (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 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. The great triumph of his reign was bringing Prussia under Polish rule. The rule of Casimir corresponded to the age of "new monarchies" in western Europe. By the 15th century, Poland had narrowed the distance separating it from Western Europe and became a significant power in international relations. The demand for raw materials and semi-finished goods stimulated trade, producing a positive balance, and contributed to the growth of crafts and mining in the entire country. He was a recipient of the English Order of the Garter (KG), the highest order of chivalry and the most prestigious honour in England. Following Casimir IV's death in 1492, John I Albert succeeded him as the King of Poland, and Alexander Jagiellon was proclaimed Grand Duke of Lithuania with John Albert claiming the status of his senior co-ruler and the Supreme Duke.

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