Background
He was the second eldest son of Hernry Borwin III and his wife Sophia (d before 24 June 1241), the daughter of King Erik X of Sweden.
He was the second eldest son of Hernry Borwin III and his wife Sophia (d before 24 June 1241), the daughter of King Erik X of Sweden.
He died on 9 November 1282, or possibly one day later. He was buried in the Doberan Minster.