Palazzo Bonacolsi
Mantua, Italy
The Palazzo Bonacolsi, also known as Palazzo Castiglioni, is a 13th-century Gothic-style aristocratic palace located in the center of the town in Piazza Sordello in front of the Ducal Palace in Mantua, region of Lombardy, Italy.
Palace data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).