Niccolò TonistoNiccolò Tonisto was a 13th-century Venetian nobleman and administrator. He is the most illustrious member of the Tonisto patrician family.LifeNiccolò Tonisto is first referred to as podestà of Capo d'Istria in 1222. He served as bailo in Acre in 1227. He was Duke of Crete from 1230 to 1232, then podestà of Verona in 1233. He functioned as podestà of Ragusa between 1238 and 1240.