founded by Adrian I., 772-795, and rebuilt, A.D. 1451, by Nicholas V.
This church, from being round, has been called after all sorts of
temples, but there is nothing whatever to show that it was once a
pagan temple. It belongs to a burial fraternity. Over the altar is a
mosaic, of the time of Adrian I., of our Saviour between SS. Peter and
Paul. The Roman women bring their children here every Thursday morning
to be blessed, after their recovery from sickness. It is a very
ancient custom, and may have originated from the sick people who used
to resort to the Fountain of Juturna to drink the waters.