Question: What type of leaden does Gertrude of Brunswick and Henry V, Holy Roman Emperor have in common?
Sentence (from "List of Holy Roman Empresses"): The elective dignity of Holy Roman Emperor was restricted to males only, therefore there was never a Holy Roman Empress regnant, though women such as Theophanu or Maria Theresa of Austria, who controlled the power of rule, served as de facto Empresses regnant.
Relevant evidence: No