Chiesa di San Pietro in Borgo

Italian Wikipedia describes the oratory as standing on Italian soil subject to extraterritoriality in favour of the Holy See; the Holy See's own enumeration names the Palazzo del Sant'Offizio «ed adiacenze» and does not itemise the oratory. On the building itself the same article gives an eleventh-century origin, records the church also as San Salvatore de ossibus and in terrione, and lists it among the Vatican basilica's dependencies in papal bulls of 1053, 1158 and 1186; the Schola Francorum hospice adjoined it. It was restored under Nicholas V, then abandoned and partly destroyed for the building of the Palazzo del Sant'Uffizio.