Question: Who is Irmgard Of Chiemsee's paternal grandmother?
Sentence (from "Irmgard of Chiemsee"): Blessed Irmgard of Chiemsee (also "Irmengard"; – 16 July 866), a member of the Carolingian dynasty, was the second daughter of King Louis the German and his wife Hemma.
Relevant evidence: Yes