Palladio Avogadro
Palladio Avogadro came from Vercelli's noble Avogadro family, which supplied many bishops to the Piedmontese church. In 1326 he became bishop of Ivrea, the diocese covering the Canavese.
The episcopal castle of Albiano d'Ivrea had belonged to his see since Emperor Otto III granted it in 1000; Palladio invested it to Philip I of Savoy-Acaia. After wars in the Canavese later in the century, the castle returned to the bishops.
In 1329 he toured his diocese. On 25 August he described San Michele at Parella as in good repair but poorly adorned, and also visited San Costanzo at Pont Canavese. He remained bishop until his death around 1346.