Note 78 — Chapter V · COMACINES UNDER CHARLEMAGNE

There is a similar stairway in the church of S. Agnese fuori le mura, at Rome, which though originally said to have been founded by Constantine, is not of Greek form, but preserves a perfect Basilican plan. It was enlarged by Pope Symmachus in the fifth century, and he, it is known, employed Italian artists. The spiral stairway (cochlea) is also mentioned at Hexham in England.