 Four years later, the building of the two missing towers was begun, initiated by Heinrich Nagelschmidt, who also created a plan for the full restoration of the church.The city of Cologne covered half of the restoration costs, said to be around 32,000 talers.In 1875, Great Saint Martin received a new roof, newly built western gables, a new window in the south wall, and finally, the completion of its two missing towers.