Question: Who is the paternal grandmother of Rostislav I Of Kiev?
Sentence (from "Mstislav I of Kiev"): Мстислав Владимирович Великий,(June 1, 1076 – April 14, 1132) was the Grand Prince of Kiev (1125–1132), the eldest son of Vladimir II Monomakh by Gytha of Wessex.
Relevant evidence: Yes