Ladislaus IV, also known as Ladislaus the Cuman, was King of Hungary and Croatia from 1272 to 1290. His mother, Elizabeth, was the daughter of a chieftain from the pagan Cumans who had settled in Hungary. At the age of seven, he married Elisabeth, a daughter of King Charles I of Sicily. Ladislaus was only 9 when a rebellious lord, Joachim Gutkeled, kidnapped and imprisoned him.

Elizabeth the Cuman (1244–1290) was the Queen consort of Stephen V of Hungary. She was regent of Hungary during the minority of her son from 1272 to 1277.