Facts and Events
Casimir III the Great (; 30 April 1310 – 5 November 1370) who reigned from 1333 to 1370, was the last King of Poland from the Piast dynasty, the son of King Władysław I ("the Elbow-high") and Duchess Hedwig of Kalisz.
Born in Kowal, Casimir first married Anna, or Aldona Ona, the daughter of Grand Duke Gediminas of Lithuania. The marriage produced two daughters, Cunigunde (d. 1357), who was married to Louis VI the Roman, the son of Louis IV, Holy Roman Emperor, and Elisabeth, who was married to Duke Bogislaus V of Pomerania. Aldona died in 1339, and Casimir then married Adelaide of Hesse. He divorced Adelaide in 1356, married Christina, divorced her, and while Adelaide and possibly Christina as well were still alive (ca. 1365), he married Hedwig of Głogów and Sagan. He had three daughters by his fourth wife, and they were still very young when he died, and regarded as of dubious legitimacy because of Casimir's bigamy. Because all of the five children he fathered with his first and fourth wife were daughters, Casimir left no lawful male heir to his throne.