Scholars believe there were four major barges, the first significant bucentaur having been built in 1311. The last and most magnificent of the historic bucentaurs made its maiden voyage in 1729 in the reign of Doge Alvise III Sebastiano Mocenigo. Depicted in paintings by Canaletto and Francesco Guardi, the ship was 35 m (115 ft) long and more than 8 metres (26 ft) high.