The chapel was built in the 13th century, and in the 15th century it was rebuilt. It was included in the hospital-care facilities funded by the city council of Trzebiatów. In 1534 the parliament of Pomerania was held in the chapel, where the princes Gryfici imposed their Protestant subjects as a state religion. Since the 18th century the chapel was a warehouse and later a fire station and a school building. After World War II it was dedicated to the needs of the Orthodox congregation.
The chapel was erected on a rectangular plan measuring 16,5 x 8,7 meters with a straight ended chancel. The walls were made of bricks on a stone foundation. The presence of the north-east buttresses suggests that the interior was originally vaulted. In the past, the entire nave of the church was covered with windows of today’s unknown appearance. Perhaps they had a similar form to the present, created in the result of 19th-century changes. In the north-east elevation, the portal entrance is pierced and the second portal is located in the north-west elevation. This is undoubtedly the primary, main entrance to the church. The chapel’s gable is richly decorated with blendes and rosettes. This decoration refers to the design of the towers of St. Mary’s church in Stargard. The south-west and south-east façades were directly adjacent to the wings of the hospital building, so they lack windows and decorations.
Website architektura.pomorze.pl, Trzebiatów – kaplica św. Ducha ( Treptow – Heiligegeistkapelle ).