Eric IX, also called Eric the Holy, Saint Eric, and Eric the Lawgiver, was a Swedish king in the 12th century, c. 1156–1160. The Roman Martyrology of the Catholic Church names him as a saint memorialized on 18 May. He was the founder of the House of Eric, which ruled Sweden with interruptions from c. 1156 to 1250.

Sverker I or Sverker the Elder was King of Sweden from about 1132 until his murder. Of non-royal descent, he founded the House of Sverker, the rulers of which alternated with the rival House of Eric over the next century.