Johann Von Mecklenburg & Luitgard Von Henneberg 
They had six sons and two daughters, named Heinrich, Albrecht, Nicholas, Johann, Poppo, Hermann, Elizabeth and Margarete.
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Personal Details
Johann Von Mecklenburg
Johann was born in 1211 in Werle, Mecklenburg Schwerin, Sachsen, Germany. He died at the age of 53 on August 1st, 1264 in Doberan, Mecklenburg Schwerin, Sachsen, Germany.
Luitgard Von Henneberg
Luitgard was born in 1211 in Henneberg, Ostpreussen, Prussia. She died at the age of 56 on June 14th, 1267 in Doberan, Mecklenburg Schwerin, Sachsen, Germany.
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Children
Heinrich Von Mecklenburg
Heinrich was born in 1230 in Doberan, Mecklenburg Schwerin, Sachsen, Germany. He died at the age of 72 on January 2nd, 1302 in Wismar, Mecklenburg Schwerin, Sachsen, Germany.
Elizabeth Von Mecklenburg
Elizabeth was born in 1231 in Doberan, Mecklenburg Schwerin, Sachsen, Germany. She died at the age of 49 on February 6th, 1280 in Itzehoe, Schleswig-Holstein, Preußen, Germany.
Albrecht Von Mecklenburg
Albrecht was born in 1233 in Doberan, Mecklenburg Schwerin, Sachsen, Germany.
Nicholas Von Mecklenburg
Nicholas was born in 1234 in Doberan, Mecklenburg Schwerin, Sachsen, Germany. He died at the age of 40 in 1274 in Schwerin, Mecklinburg Schwerin, Germany.
Hermann Von Mecklenburg
Hermann was born in 1240 in Doberan, Mecklenburg Schwerin, Sachsen, Germany.
Margarete Von Mecklenburg
Margarete was born in 1242 in Doberan, Mecklenburg Schwerin, Sachsen, Germany.