Constantine and the birth of Deutz

Divitia / Castrum Divitium / Fort Deutz

Model of the Roman Fort Deutz

How does the place where the Fort was look nowadays?

The Rhine river is now a little bit more narrow than 2,000 years ago. This former monestary was built on the foundations of the fort that existed up until the Middle Ages.
The view from the place of the Fort Deutz towards Cologne (north west). Where Cologne cathedral is at was the northern Roman city wall. The bridge that Constantine has built here is gone for good nowadays-

Cologne during Constantine the Great ca. 315 AD

How people in later times thought the bridge built by Constantine might have looked like 😀 This is not a true depiction of how it all looked like.

I tried to make a Map that shows where Roman Cologne would be in modern day Cologne. Notice how many streets still exist today. For example the ones marking the city wall (red) or Hohe Straße/Cardo Maximus (green). The Fort Deutz is the blue square on the right with the bridge (yellow)
To see the interactive map, go to

Trier / Augusta Trevorum

Porta Nigra – The black Gate in Trier
Roman bridge in Trier. The foundations are from the 2nd century.
Remains of a Roman thermal bath in Trier
The Aula Palatina in Trier where Constantine resided. Built in 310 AD. Once this basilica was part of a larger palace construction. It has been preserved and remodelled through the course of history. Today it is a protestant church.
Inside the Aula Palatina.

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