Leon Trionfante-class ship of the line

The "Leon Trionfante"-class were a class of at least fourteen 70-gun third rate ships of the line built by the Venetian Arsenale from 1716 to 1785, in four different series with minor changes in the ships' length. In 1797, when Venice fell to the French, Napoleon captured several ships of the class, still unfinished in the Arsenal: he chose one of them, forced the shipbuilders to have it completed and added it to his fleet "en route" for Egypt. After Campoformio, the remaining vessels were destroyed by the French to avoid their capture by the Austrian Empire.
Design and history.
Almost all the ships of this class were planned and started before 1739, completed to a 70%, then stored in the roofed shipbuilding docks of the Arsenale to be finished and launched when the Venetian Navy need them, a solution the British Royal Navy adopted only in 1810, when the docks at Chatham were covered.
This decision, mostly due to the chronic lack of funds of the Republic of Venice in its final years, led to retain in service older and inferior ships than the ones built at the same time for the British Royal Navy and the French Royal Navy. Moreover, contemporary third rates had heavier guns (32-pounders on the gun deck and 18-pounders on the upper gun deck), even if the armament of those ships could be brought up to 72-74 guns. Except for the "Leon Trionfante" and the "Diligenza", none of this class' ships remained in service for more than fifteen years.