Palazzo dei Vescovi a San Miniato al Monte
Florence, Italy
The Palazzo dei Vescovi at San Miniato al Monte was a summer residence of the Bishops of Florence and was built, at his own expense, by Monsignor Andrea dei Mozzi, Bishop of Florence, recalled by Dante in canto XV of Inferno.
Palace data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).