 At first, he ruled from Rötteln Castle.In 1599 he moved his residence and the entire National Administration to Sulzburg).After the conversion of his brothers Ernest Frederick to strict Calvinism and James to Catholicism, George Frederick remained a Lutheran and founded his own Latin school in his small residence Sulzburg, so he would not have to depend on the Calvinist school in Durlach for the education of pastors in his territory.