Luitgarde of Henneberg 1215 - bef. 14 Jun 1267 (1210–1267) Parents Elisabeth von Wildberg Poppo VII of Henneberg Children John II, Lord of Mecklenburg Henry I, Lord of Mecklenburg Elisabeth of Mecklenburg Nicholas III Albert I, Lord of Mecklenburg Siblings Berthold I. von Henneberg Herman I, Count of Henneberg Henry III of Henneberg Adelheid of Henneberg Kunigunde von Henneberg Anna of Henneberg Berta Henneberská Partners John I