Henry I, Lord of Mecklenburg Lord of Mecklenburg (1230–1302) Parents Luitgarde of Henneberg John I Children John III, Lord of Mecklenburg Ludgarda of Mecklenburg Henry II, Lord of Mecklenburg Siblings Nicholas III Elisabeth of Mecklenburg John II, Lord of Mecklenburg Albert I, Lord of Mecklenburg Partners Anastasia of Pomerania