Question: What type of leaden does Gertrude of Brunswick and Henry V, Holy Roman Emperor have in common?
Sentence (from "Gertrude of Brunswick"): Gertrud of Brunswick (German: "Gertrud von Braunschweig" ;  1060 – 9 December 1117), was Countess of Katlenburg by marriage to Dietrich II, Count of Katlenburg, Margravine of Frisia by marriage to Henry, Margrave of Frisia, and Margravine of Meissen by marriage to margrave Henry I.
Relevant evidence: No