There is an anonymous account
describing the visit to Rome, in year
1122, of a certain 'Patriarch John' and
relates details of his ministry and
homeland. He lives, it is said, in a great
city with walls thick enough to drive
two chariots abreast along the top of
them. Through the city runs the
river Physon which rises in Paradise;
and a short way beyond the walls
is a mountain, on top of which
stands