Question: Who is Sophia I, Abbess Of Gandersheim's paternal grandmother?
Sentence (from "Sophia I, Abbess of Gandersheim"): Sophia I (September 975 – 30 January 1039), a member of the royal Ottonian dynasty, was Abbess of Gandersheim from 1002, and from 1011 also Abbess of Essen.
Relevant evidence: No