Pietro Zeno
Pietro Zeno (died 1345) was a Venetian commander. As captain and bailiff of Negroponte, he bought off a 380-ship Aydinid fleet under Umur Bey that raided the island in 1332.
That July Doge Francesco Dandolo charged him with arranging an anti-Turkish alliance, formally established as the Naval League by year's end. Zeno led its twenty galleys to victory over the emir of Karasi off Adramyttion on 14 September 1334.
In 1343 the Grand Council sent him to join the Smyrniote crusade. After Smyrna fell, he was killed in an ambush by Umur Bey's forces while attempting to celebrate mass on 17 January 1345.