Built entirely in 1248, the church of the Trinitarians is one of the finest expressions of Gothic art in Luxembourg. The large choir was added in 1644. The main altar, made in 1758 in Rococo style, is the work of the artist Michel Weiler. Beside the church, the former cloister of the Trinitarians (1250). The recumbent effigy of Marie de Spanheim (approx. 1400) preserves the memory of the last descendant of the Counts of Vianden.
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.