Erik Eriksson (Old Norse: Eiríkr Eiríksson; 1216 – 2 February 1250), sometimes known as Erik XI or with the epithet the Lisp and Lame (läspe och halte), was King of Sweden from 1222 to 1229 and again from 1234 to 1250. Being the last ruler of the House of Erik, he stood in the shadow of a succession of powerful jarls, especially his brother-in-law Birger Jarl, whose descendants ruled as kings after his death. Background. Erik was the son of King Erik Knutsson and Rikissa of Denmark.
https://en.wikipedia.org/wiki/Erik_Eriksson