The Chapelle Sainte Catherine is a Roman Catholic chapel located in Hombourg-Haut, in the historic region of Lorraine.
Built by the knight Simon of Hombourg between 1250 and 1270, it initially was a private chapel, surrounded by the buildings of the knights' castle. Its towers and walls made up the outer part of a big medieval castle. The chapel was renovated in 1706, 1897 and 1984.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.