The Venetians remained in charge until 1715 during the last Ottoman–Venetian war when, long after the rest of the Cyclades had fallen to the Turks, it was besieged by a Turkish force of 65 warships and 74 transports carrying 25,000 soldiers. Despite the fortress being regarded as unconquerable and seeming secure against the invaders the commander of the fortress negotiated terms and surrendered. The terms allowed all the Venetians on the island to leave with the Greeks forced to stay. The commander and his officers were accused of "treason after bribery" by the Venetian Republic and sentenced to death by swallowing liquid silver/having liquid silver poured on their bodies