He granted his citizens the right to choose their Christian denomination and introduced the Simultaneum, whereby churches had both Protestant and Catholic services.

In 1666 he permitted Jews to settle in the Duchy of Sulzbach and, due to his interest in mysticism and the Kabbalah, allowed a Hebrew print-shop.

[3] Under his rule, Sulzbach also became an intellectual center and the site of a regionally significant printing industry.

Christian had a close relationship with his granddaughter Sibylle of Saxe-Lauenburg, wife of Louis William of Baden-Baden and Regent of her son's dominions.

Christian Augustus married Amalie of Nassau-Siegen,[2] daughter of Count John VII, on 27 March 1649 and had the following children: