How many "palaces" are there in Venice?

In the years of splendor in Venice there was a law that allowed only one building to wear the name of the palace - it was the Doge's Palace, the residence of the rulers of Venice. The rich Venetian families lived according to this law in the so-called houses (Casa abbreviated Ca). Currently, most residences of Venetian patricians carry the word "palace" in their name, although there are exceptions and some Venetian monuments are still called according to old traditions, eg Ca'Rezzonico or Ca 'd'Oro. Over 100 survived to modern times.