The Patriarchal Cathedral of the Holy Ascension is a former Eastern Orthodox cathedral in the city of Veliko Tarnovo, in north central Bulgaria. Located on top of the fortified Tsarevets hill in the former capital of the Second Bulgarian Empire, the cathedral was the seat of the Bulgarian patriarch from its construction in the 11th–12th century to its destruction in 1393.
The current building of the Patriarchal Cathedral is considered by scholars to have been built in two stages. The first stage of construction was carried out in the late 11th century or the 12th century. The cathedral was initially built as a monastery church in the middle of a monastery compound, though in the early 12th century it was already the seat of the Bulgarian patriarch. The compound suffered large-scale damage caused by a fire, which necessitated the church's reconstruction in middle of the 14th century. Besides repair and reinforcement efforts, work on the church in the 14th century also included the construction of the exonarthex and the bell tower.
The Patriarchal Cathedral was destroyed after the Ottomans captured the Bulgarian capital after their Siege of Tarnovo on 17 July 1393. Reconstructed in the 1970s and 1980s, it follows a cross-domed plan with a bell tower and a triple apse. Richly decorated on both the exterior and interior, its internal walls now feature modern frescoes, the presence of which has meant that it has not been reconsecrated. Though not active as a Christian place of worship, it has been open for visitors since 1985.
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.