Province of Bologna
Their seat in the city was Palazzo Pepoli Vecchio, constructed by . The Pepoli maintained dynastic alliances through well-considered marriages: Obizzo III d'Este, Marquis of Ferrara, married Jacopa Pepoli in 1317 and the condottiero Roberto Alidosi, papal vicar and lord of Imola, was given Giacoma Pepoli. The commune of Castiglione dei Pepoli in the Italian Province of Bologna still bears the family's name.