Question: Who is the paternal grandfather of Margaret Of Brandenburg?
Sentence (from "Margaret of Brandenburg"): Margaret of Brandenburg-Salzwedel (born ca. 1270 – died 1 May 1315) was a German noblewoman member of the House of Ascania and by her two marriages Duchess of Greater Poland (during 1293–1296), Queen of Poland (during 1295–1296) and Duchess of Saxe-Lauenburg (during 1302–1308).
Relevant evidence: No