Johan Sverkersson (c. 1201 – 10 March 1222), also known as John I, was King of Sweden from 1216 until his death in 1222. He was the last king from the House of Sverker, leaving no heirs. During his reign, an expedition was launched from Sweden against the Estonians, with disastrous results. Background. Johan was the son of King Sverker II of Sweden of the House of Sverker and Queen Ingegerd of the Bjälbo dynasty. When he was one year old, his maternal grandfather Jarl Birger Brosa died.
https://en.wikipedia.org/wiki/Johan_Sverkersson
Johan Sverkersson (c. 1201 – 10 March 1222), also known as John I, was King of Sweden from 1216 until his death in 1222. He was the last king from the House of Sverker, leaving no heirs. During his reign, an expedition was launched from Sweden against the Estonians, with disastrous results. Background. Johan was the son of King Sverker II of Sweden of the House of Sverker and Queen Ingegerd of the Bjälbo dynasty. When he was one year old, his maternal grandfather Jarl Birger Brosa died.
