The palace armory, a complex of rooms used as a warehouse for the armigers of the palace, was made up of four rooms and there are about 2000 prestigious pieces. [146] It forms the corner between the façade facing the Rio di Palazzo and the façade facing the Molo.

Room I or Room of Gattamelata: takes this name for the very fine armor owned by Gattamelata , nickname of Erasmo da Narni. In this room other sixteenth-century armor are also exhibited , some for infantrymen, others for knights and others for tournaments. In particular, there is a child’s or perhaps a dwarf’s armor, found after the battle of Marignano . In the room there are also arches, crossbows, ship lanterns of Turkish origin. [171]

Room II or Room of the King of France: characterized by the presence of a Turkish banner, spoils of the battle of Lepanto and finely decorated, the room also presents an armor that belonged to Henry IV of France , donated to the Serenissima either in 1603 or 1604 , a horse head armor, broadswords, decorated halberds. [171] The royal armor is placed inside a niche that was designed by Vincenzo Scamozzi . [146]

Room III or Sala Francesco Morosini as it is dedicated to the latter by the Council of Ten: it is characterized by the presence of a bronze bust of the latter, placed in a niche. In the room there are also swords, halberds, quivers, crossbows, a decorated colubrina dating back to the sixteenth century , a twenty-barreled arquebus dating back to the seventeenth century . [171]

Room IV: characterized by the presence of numerous mixed weapons, there are preserved crossbows from the 16th century, firearms clubs, hatchets, firearms, arquebuses. There is also the devil’s box, capable of hiding four gun barrels and a poisoned arrow inside. There are also numerous instruments of torture, flanked by a chastity belt and some weapons that belonged to the Carrara family , originally from Padua but defeated in 1405 by the Venetians