Simeonstift of Trier

In honor of the new saint, they built the Simeonstift and converted the former tower to a Doppelkirche ('twin church').

The Archbishop of Trier at that time, Poppo von Babenberg, personally had known the hermit and travelled with him.

Emperor Henry IV in 1098 confirmed all his possessions to the Simeonstift and granted, namely, more than sixty properties and privileges to it.

[1] The Doppelkirche conversion of the Porta Nigra was reversed more than 750 years later, in 1804, by the order of Napoleon.

Only the Romanesque east side of the choir still testifies from the outside to the fact that the Porta Nigra was once an imposing church.