Kolping and Scotus both feature on the new west doors designed by Paul Nagel in 2006.
Typically for Franciscan monastery churches, it was built in the Gothic style.
When the French Revolution spread to Cologne in 1794, the Franciscans were expelled from the church and the adjoining monastery.
The occupying forces seized the buildings in 1804 and four years later turned them into the headquarters for secular social work in the city.
He also instigated a restoration which was completed in 1862, partly thanks to a 40,000 Taler donation from the businessman Johann Heinrich Richartz (1795–1861), who had already set up the Wallraf-Richartz-Museum on the former site of the monastery buildings.