Magnus Henriksson (Danish: Magnus Henriksen; c. 1130 – 1161), also known as Magnus II, was a Danish lord and King of Sweden between 1160 and 1161. He is often seen by posterity as a usurper. Background. The mother of Magnus was Ingrid Ragvaldsdotter, a granddaughter of King Inge I of Sweden. His father was the Danish lord Henrik Skatelår, son of an illegitimate son of king Sweyn II of Denmark. After Henrik's death, Ingrid remarried thrice, with Harald Gille of Norway, then Ottar Birting, and finally Arne from Stårheim.
https://en.wikipedia.org/wiki/Magnus_Henriksson