Agnes of Werle Parents Nicholas IV of Werle Agnes of Lindau-Ruppin Children Nicholas V of Werle Christopher of Werle Siblings John IV of Werle Matilda of Werle-Goldberg Ulrich I, Duke of Mecklenburg-Stargard Albert I, Duke of Mecklenburg-Stargard John II, Duke of Mecklenburg-Stargard Rudolf of Mecklenburg-Stargard Partners John VI of Werle