Chiesa di San Pietro alla Magione (Saint Peter of the Mansion Church), Siena

The Saint Peter of the Mansion Church is a medieval structure that dates back to the crusades. It is an important church located in the territory of the Contrada dell'Istrice, one of the 17 districts of Siena. Records show that the Church existed from the year 998. The Counts Bernard and Gualfredi Ranieri gifted the land to the city to build a church and lay vineyards in that year.

Since it was located near the Camollia Gate through which pilgrims and crusaders passed on their way to the holy land, the Knights Templars took over the management of the church and converted it into a hospital in the 12th century. After the abolition of the order in 1312, it passed into the hands of the Knights Hospitallers.

The Saint Peter of the Mansion Church is a rectangular structure with a nave, a semicircular apse and a wooden roof. The bell tower has the design of templar churches during the crusades. The exterior and interior of the church have several stone templar crosses. The frescoes on the walls were painted by the Knights Hospitallers and depict scenes from the Old and the New Testaments.