The patron of Castel del Rio is Saint Ambrose, celebrated on 7 December.
The town is known for the Sagra del Marrone, founded in 1956 and devoted to the marrone di Castel del Rio, a PGI chestnut: it is the oldest festival of the Santerno valley.
In 51 days Patron saint festival
Feast of Saint Ambrose
7 December 2026
Monday 7 December
Castel del Rio · Bologna · Emilia-Romagna
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December 2026Monday 7 December
751 days to go.
On 7 December Castel del Rio celebrates its patron Saint Ambrose; the town is known for the Sagra del Marrone, the oldest festival of the Santerno valley, founded in 1956.
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