The Sacra di San Michele, sometimes known as Saint Michael's Abbey, is an architectural complex built on top of Mount Pirchiriano, situated on the south side of the Susa valley, in the Piedmont region of northern Italy. Founded between the late 10th and the early 11th century, the abbey is located along the pilgrimage route that joins Monte Sant'Angelo, in the south of Italy, to Mont Saint-Michel, in the north of France.