Reniero Zeno
Reniero Zeno (c. 1200–1268), son of Pietro Zeno, was the 45th Doge of Venice from January 1253 until his death. He served as podestà of Pola, Verona and other Italian cities, retook rebellious Zara in 1242 and became captain-general of the Sea in 1244.
Elected doge while podestà of Fermo, he backed Pope Alexander IV against Ezzelino da Romano in 1256–1259 and fought the War of Saint Sabas against Genoa, winning at Settepozzi in 1263.
His reign enacted Venice's 129-article maritime code and made a five-year truce with Byzantium in 1268. He died on 7 July 1268.