On the right-hand side of the Grand Canal, wedged between Palazzo Correggio and the masses of Ca’ Pesaro and Ca’ Corner della Regina, this 18th-century palazzetto built on older structures is one of the most modest fronts on the waterfront — and that is exactly why it stands out. The double surname tells two stories: the ancient, dogal one of the Donà, and the more recent one of the Sangiantoffetti, nobles of Vicenza who entered the patriciate by paying for the war of Candia.