Question: When did Beatrice Of Navarre, Duchess Of Burgundy's father die?
Sentence (from "Blanche of Navarre, Countess of Champagne"): Her eldest brother, Sancho VII of Navarre, succeeded their father as King of Navarre and was the last male descendant of the first dynasty of Kings of Navarre, the Pamplona dynasty, dying childless.
Relevant evidence: No