Ales

Ales lies on the eastern slopes of Monte Arci in western Sardinia, in a landscape known for its obsidian. It became a bishop's seat and a religious centre for the surrounding district. Its cathedral, dedicated to Saints Peter and Paul, was rebuilt in the seventeenth century under the direction of the Genoese architect Spotorno. Bishop Pietro del Frago held a diocesan synod in 1564, among the first in Sardinia after the Council of Trent.