Твртко I
Nothing is known about Ivan Stratsimir's first wife and children apart from their existence. Ivan Sratsimir married for a second time to his first cousin, Anna of Wallachia, a daughter of his uncle Nicholas Alexander of Wallachia, and had at least three children. Dorothea (Doroslava), married Ban Tvrtko I of Bosnia and became the first Queen of Bosnia while Constantine II succeeded him as Emperor of Bulgaria. Sratsimir also had another daughter, who died young at the court of Elizabeth of Poland.