Question: Who is the maternal grandfather of Herman I, Count Of Henneberg?
Sentence (from "Jutta of Thuringia"): Jutta of Thuringia (1184 – 6 August 1235) was the eldest daughter of Landgrave Hermann I of Thuringia and his first wife, Sophia of Sommerschenburg, a daughter of Fredrick II of Sommerschenburg.
Relevant evidence: Yes