Question: Who is Adalbert Ii, Margrave Of Tuscany's paternal grandfather?
Sentence (from "Adalbert I, Margrave of Tuscany"): When the Roman court persisted in this "interference", Adalbert marched on the eternal city, forced John VIII to take refuge in the St Peter's Basilica, and forced the Roman citizens to swear fealty to Carloman.
Relevant evidence: No