This 11th-century Romanesque church, the oldest in Viterbo, was restored to its original form after sustaining bomb damage in WWII. Traces of 13th-century frescoes line the solemn, grey interior, whilst outside you can see a stone pulpit where St Thomas Aquinas preached in 1266. Also of note is the church's cloister, the so-called Chiostro Longobardo .
