The Territorial Abbey of Montevergine (Territorialis Abbatia Montisvirginis) is a Roman Catholic territorial abbey located in the commune of Montevergine in the ecclesiastical province of Benevento in Italy.
About 1120 William of Vercelli founded an abbey of eremitic inspiration dedicated to the Holy Virgin. It was consecrated in 1124 on Mons Sacer, so called because of the ruins of a temple of Cybele. Catherine of Valois and her son, Louis I of Naples, are buried in the abbey. The new basilica, built in 1961, is home to a 13th-century Byzantine icon of a black Madonna. In 1926 it was established as the Territorial Abbacy of Montevergine.
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.