Giovanni Gradenigo

Giovanni Gradenigo (c. 1279–1356), nicknamed Nason for his large nose, became the 56th Doge of Venice on 21 April 1355, in the wake of Marino Falier's execution for treason. He was the son of Marino Gradenigo, duke of Candia, who died in Crete.

Gruff and austere, a man many avoided, he was known as fiercely loyal to the Republic after a career as a podestà on the mainland. In June, with the city frightened by conspiracies, he made peace with Genoa, ending a long, losing war, and tackled the Republic's money troubles.

War broke out again in 1356, a conflict his successor Giovanni Dolfin would end on bad terms at Zadar. Gradenigo died in August 1356, with little mark left on the state.