[German Version]

(papacy Jun 25, 1243 – Dec 7, 1254) (Sinibaldo Fieschi, b. 1180/1190 at Lavagna, near Genoa). After studying and teaching law at Bologna, Sinibaldo served as auditor of the Curia, cardinal and vice chancellor of the Roman Church, rector of the March of Ancona, and legate of Gregory IX. During the conflict between empire and papacy, which also divided the College of Cardinals, the see of Rome stood vacant for 18 months (See, Vacant). Finally Sinibaldo was elected at Agnani as a compromise candidate. Negotiations with Frederick Hohenstaufen, who had been excommunicate…