Beatrice d'Este
Beatrice d'Este (1268–1334), daughter of Obizzo II d'Este, marquis of Ferrara, married first Nino Visconti, judge of Gallura, and bore him a daughter Joanna in 1291. Widowed in 1296, she returned to Ferrara, and in 1300 married Galeazzo I Visconti, becoming lady of Milan; their son was Azzone Visconti.
Beatrice shared the Visconti exile of 1302–1311 and later fled Piacenza with Azzone. After Emperor Louis the Bavarian deposed Galeazzo in 1327 and he died in exile in 1328, Azzone became lord of Milan in 1329. Dante alludes to her in Purgatorio, and she died in Milan in 1334.