Question: What cousin of Herman I, Duke of Swabia also had a chance to rule the Duchy of Franconia?
Sentence (from "Duke of Swabia"): For much of this period, the Hohenstaufen were also Holy Roman Emperors. With the death of Conradin, the last Hohenstaufen duke, the duchy itself disintegrated, although King Rudolf I attempted to revive it for his Habsburg family in the late-13th century.
Relevant evidence: No