Construction of the Lutheran chapel along the western side of the castle's southern wing began in 1584 under the direction of Blasius Berwart of Stuttgart.

[3] Wood rot was discovered in the cellar, however, and from 1602 to 1608 the original wooden base was replaced with a doubly reinforced lierne or stellar vaulting with granite pillars by Hans Wissmar and Timotheus Just, building master of Elbing.

The church was decorated in gold and scarlet cloth, two thrones were placed before the altar, and the Swiss Guards and court officials were finely attired.

[6] From 1705 to 1710 Joachim Ludwig Schultheiß von Unfriedt decorated the church with galleries, a royal box, and high altar.

Oberbürgermeister August Wilhelm Heidemann gave the eulogy, Mozart's Requiem and Handel's Messiah were performed, and 2,500 candles were burned.