Polish king. He was of the Jagiellonian dynasty was Grand Duke of Lithuania from 1440, and King of Poland from 1447, until his death. He was one of the most active Polish rulers, under whom Poland, by defeating the Teutonic Knights in the Thirteen Years’ War recovered Pomerania, and the Jagiellonian dynasty became one of the leading royal houses in Europe. He was a strong opponent of aristocracy, and helped to strengthen the importance of Parliament and the Senate.
The great triumph of his reign was the effective and final destruction of the Teutonic Order, which brought Prussia under Polish rule. The long and brilliant 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 become a significant factor 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 and of the United Kingdom, awarded at the Sovereign’s pleasure as his or her personal gift, on recipients from the United Kingdom and other Commonwealth realms.
He died 7 June 1492.
Link to Wikipedia biography