In 990 AD, Willigis, Archbishop of Mainz and Archchancellor of the Holy Roman Empire, endowed a collegiate foundation in Mainz and had the church built as the “Empire’s Place of Prayer”. The constructor of the cathedral was himself laid to rest in St. Stephen’s in 1011. The new Gothic building was erected between 1290 and 1335. It stands on the foundations of the basilica built in Ottonian-pre-Romanesque style around 990. When the (gun) Powder Tower located nearby blew up in 1857, St. Stephen’s was also badly damaged. The rich baroque decoration was removed during the reconstruction.
St. Stephen’s is the only German church for which the Jewish artist Marc Chagall (1887 - 1985) created windows. He completed his final window shortly before his death at the age of 97. Nineteen later and deliberately more modest windows in the side aisles by Charles Marq, from the Atelier Jacques Simon in Reims, serve to lead up to the masterpieces. Chagall worked together with Marq for 28 years.
Anyone who has seen the famous windows should not afterwards fail to take a walk around the most beautiful late-Gothic cloister in Rhineland-Palatinate. This was the place of burial of many of the 600 canons. Tombstones and the coats of arms of the capitular families recall their memory. The coats of arms are enriched by modern keystones donated by the federal and state governments, the bishopric and city of Mainz. Works of art, such as the enthroned God the Father from the 15th century, or the late Gothic sculpture of St. Anne, the Virgin and the Christ Child, should also not be overlooked. For some years in St. Stephen’s, children have been baptised in the original Gothic baptismal font from 1330 again.
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.