Son of Birger Jarl
Johan Magnusson was a Swedish nobleman and a member of the Folkunga family. He was born in 1295 as the son of Magnus Gregersson and Ingegärd Filipsdotter. He had several siblings, including Ragvald, Knut, Ingeborg, Helena, and Margareta. He married Ingeborg Eriksdotter Bonde, the daughter of Erik Magnusson Bonde and Ingeborg Knutsdotter. They had at…