Agnese Zantani

Pietro Gradenigo, 49th Doge of Venice, was married first to Tomasinia Morosini and then to Agnese Zantani.

From The dogaressas of Venice : The wifes of the doges by Mrs. Eric Schmidt:

"We gather very little of the Dogaressa Tommasina from the history of her husband's dogado: Some say she died in 1300, and that the Doge married, in the following year. Donna Agnese, the daughter of Pietro Zantani — "a woman of the people " — who survived him, and dying, left her personal property to her only son Pietro. Another woman's name is associated with that of the Doge, one Sabba Minotti, but who and what she was we do not know. Domestic morality under Pietro Gradenigo did not attain a very distinctively high mark!"