Question: What is the date of death of Lambert Mieszkowic's father?
Sentence (from "Mieszko I of Poland"): Most sources make Mieszko I the father of Sigrid the Haughty, a Scandinavian queen, though one source identifies her father as Skoglar Toste, and the grandfather of Canute the Great (Gundhild's son), and the great-grandfather of Gunhilda of Denmark, Canute the Great's daughter and wife of Henry III, Holy Roman Emperor.
Relevant evidence: No