Besides Cologne, Mainz and Trier the nuncios could wield their jurisdiction undisputedly for the prince-bishoprics of Hildesheim, Liège, Osnabrück, Paderborn, and Würzburg.
He also established the Confraternity of the Passion at Cologne; amongst its first protectors were two friends, Mgr Antonio Albergatti, the nuncio at Cologne, and Frederick of Hohenzollern, the dean of the cathedral.
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