Aldobrandino d'Este

Aldobrandino d'Este (1325–1381) was an illegitimate son of Rinaldo II d'Este, lord of Ferrara. He entered the Church in 1344 and was elected bishop of Adria in 1348, later holding the sees of Modena and Ferrara.

As bishop of Modena he backed the Este against the Visconti, and his refusal to pay anti-Ghibelline clerical taxes earned him repeated excommunication. He devoted himself to aiding the poor, and after his death on 30 October 1381 he was venerated as a beatus.