Jadwiga (also known as Hedwig) was Queen of Poland from 1384 until her death in 1399, and the last hereditary ruler of the kingdom. Crowned "King" to emphasise her sovereign status, she was the youngest daughter of Louis I of Hungary and a member of the Capetian House of Anjou with Polish Piast ancestry. Her marriage to Władysław II Jagiełło, who converted to Catholicism, and her death without surviving children led to Poland's throne becoming elective. In 1997 she was canonised by the Catholic Church.