Later, the city became the full residence of the Prussian royal family.

An excerpt from the article 24 facts about Potsdam

Under the rule of Frederick William I, the city became an important garrison site. As the population continued to increase, new housing estates began to be built. A garrison church was also built, as well as the church of St. Nicholas and the church of St. Spirit which shaped the image of the city.

A military orphanage was also established where the children of military personnel were cared for, educated, and given military training.