Schlosskapelle St. Trinitatis Moritzburg, Chapel in Moritzburg Castle, Germany.

Schlosskapelle St. Trinitatis Moritzburg is a rectangular chapel located within Moritzburg Castle featuring elaborate interior decoration. Italian plasterers created the stucco work covering the walls and an oval ceiling painting from 1670 depicts the Ascension of Christ.

The chapel was designed by Wolf Caspar von Klengel between 1656 and 1672, establishing its architectural foundation during the Protestant period. Its transformation to a Catholic house of worship followed Augustus the Strong's conversion in 1699.

The chapel displays Italian craftsmanship through its marble sculpture of Christ at the Column of Scourging from 1725 and a Venetian altarpiece showing the Assumption of Mary. These artworks reflect the religious transformations the chapel underwent across the centuries.

The chapel forms the west wing on the central axis of Moritzburg Castle, so it is reached through the castle itself rather than as a separate building. Its interior is a plain rectangular hall, and the two-storey galleries and the loggia of 1728 are best seen from inside the room.

The chapel's foundation stone was laid by Johann Georg II in 1661, and a commemorative coin was struck for the occasion. The south side holds the pulpit's wooden prospect, the north side a vestibule with the so-called Heerespaukerstand above it, both by court carpenter Christoph Krockner.