German king and Holy Roman Emperor. Son of Henry IV and Bertha of Maurine, and the last of the Salic princes. Though he succeeded to his title under a pact with the pope and princes, he refused later to yield his claim to the right of investiture. He seized Pope Paschal II and forced him to order all the clergy to turn over all Church property to him; this illegal agreement was repudiated at once by the princes and by Guido, Archbishop of Vienna, Austria, who excommunicated Henry. When Guido became Pope Saint Callistus II, Henry, to procure internal peace, agreed to a treaty by which the Church alone was to appoint bishops and abbots, while the king, abandoning the ring and crosier at investitures, was entitled to confer the temporalities on ecclesiastics by investing them with a scepter.