With her he had the following children :
John I married Luitgard of Henneberg ( 1210 - 1267 ) , the daughter of Count Poppo VII of Henneberg .
With Luitgard of Henneberg John I had the following children :
John I married Luitgard of Henneberg ( 1210 - 1267 ) , the daughter of Count Poppo VII of Henneberg .