Knut Eriksson (Old Norse: Knútr Eiríksson; born before 1150 – died 1195/96), also known as Canute I, was King of Sweden from 1173 to 1195 (rival king since 1167). He was a son of King Erik the Saint and Queen Christina, who was a granddaughter of the Swedish king Inge the Elder. Youth and ascension. Knut was born no later than the 1140s, thus before his father had yet gained power over parts of Sweden. As a young man he was betrothed to a lady, sister of another Knut. Her name is not revealed, but her equal could supposedly not be found in the land.
https://en.wikipedia.org/wiki/Knut_Eriksson