The Church of Saint Susanna at the Baths of Diocletian is located on the Quirinal Hill in Rome. There has been a titular church associated to its site as far back as AD 280. The current church was rebuilt from 1585 to 1603 for a monastery of Cistercian nuns founded on the site in 1587 which still exists there.
About 280, an early Christian house of worship was established on this site, which, like many of the earliest Christian meeting places, was in a house. According to the 6th-century document, the domus belonged to two brothers named Caius and Gabinus, prominent Christians. Santa Susanna is one of the oldest titles in the city of Rome. The early Christian church, built on the remains of three Roman villas still visible beneath the monastery, was situated immediately outside the wall of the Baths built by Diocletian and the Servian Wall, the first walls built to defend the city. The first three-aisled basilica was almost certainly built under the pontificate of Pope Leo III (795-816).
Pope Leo III rebuilt the church from the ground in 796, adding the great apse and conserving the relics of the saints in the crypt. A vast mosaic of Christ flanked by Leo and the Emperor Charlemagne and Saints Susanna and Felicity on the other was so badly damaged in the 12th century by an earthquake, that the interior was plastered over in the complete renovation that spanned the years 1585-1602 and frescoed by Cesare Nebbia.
Pope Sixtus IV (1475-1477) proceeded to rebuild the Church, probably a single nave with two side chapels. In 1588 it became the last great rebuilding effort of Cardinal Girolamo Rusticucci, Cardinal protector of the Cistercian Order, with construction running from 1595 to 1603.
The altarpiece of the high altar, depicting the beheading of St. Susanna, is by Tommaso Laureti of Palermo (1530-1602). Through the glass floor of the sacristy can be seen part of the early Christian Church and the remains of the Roman house, which is said to be the home of the father of the saint.
The church consists of a single nave, with a circular apse forming two side-chapels. The frescoes of the central nave by Baldassare Croce represent six scenes from the life of Susanna found in the Book of Daniel. The frescoes on the curved side of the apse shows Saint Susanna being threatened by Maximian, but defended by the angel of God and to the right, Susanna refusing to worship the idol Jupiter. Nebbia's frescoes of the dome of the apse depict Saint Susanna flanked on either side by angels with musical instruments. Behind the high altar, the painting depicting the beheading of Saint Susanna is by Tommaso Laureti.
Domenico Fontana constructed the second side-chapel to the left dedicated to Saint Lawrence, commissioned by Camilla Peretti, sister of Pope Sixtus V. The paintings are by the Milanese artist Giovanni Battista Pozzo (1563-1591). The altar painting by Cesare Nebbia depicts the martyrdom of St. Lawrence. In this chapel are venerated Saint Genesius of Rome, patron of actors, in the act of receiving baptism, and the bishop Pope Saint Eleuterus.
The valuable ceiling of the nave and of the presbytery is made in polychromed gilt wood, carved to the design of Carlo Maderno.References:
The Church of Saint Demetrius, or Hagios Demetrios, is the main sanctuary dedicated to Saint Demetrius, the patron saint of Thessaloniki. It is part of the site Palaeochristian and Byzantine Monuments of Thessaloniki on the list of World Heritage Sites by UNESCO since 1988.
The first church on the spot was constructed in the early 4th century AD, replacing a Roman bath. A century later, a prefect named Leontios replaced the small oratory with a larger, three-aisled basilica. Repeatedly gutted by fires, the church eventually was reconstructed as a five-aisled basilica in 629–634. This was the surviving form of the church much as it is today. The most important shrine in the city, it was probably larger than the local cathedral. The historic location of the latter is now unknown.
The church had an unusual shrine called the ciborium, a hexagonal, roofed structure at one side of the nave. It was made of or covered with silver. The structure had doors and inside was a couch or bed. Unusually, it did not hold any physical relics of the saint. The ciborium seems to have been a symbolic tomb. It was rebuilt at least once.
The basilica is famous for six extant mosaic panels, dated to the period between the latest reconstruction and the inauguration of the Byzantine Iconoclasm in 730. These mosaics depict St. Demetrius with officials responsible for the restoration of the church (called the founders, ktetors) and with children. An inscription below one of the images glorifies heaven for saving the people of Thessalonica from a pagan Slavic raid in 615.
Thessaloniki became part of the Ottoman Empire in 1430. About 60 years later, during the reign of Bayezid II, the church was converted into a mosque, known as the Kasımiye Camii after the local Ottoman mayor, Cezeri Kasım Pasha. The symbolic tomb however was kept open for Christian veneration. Other magnificent mosaics, recorded as covering the church interior, were lost either during the four centuries when it functioned as a mosque (1493–1912) or in the Great Thessaloniki Fire of 1917 that destroyed much of the city. It also destroyed the roof and upper walls of the church. Black-and-white photographs and good watercolour versions give an idea of the early Byzantine craftsmanship lost during the fire.
Following the Great Fire of 1917, it took decades to restore the church. Tombstones from the city"s Jewish cemetery - destroyed by the Greek and Nazi German authorities - were used as building materials in these restoration efforts in the 1940s. Archeological excavations conducted in the 1930s and 1940s revealed interesting artifacts that may be seen in a museum situated inside the church"s crypt. The excavations also uncovered the ruins of a Roman bath, where St. Demetrius was said to have been held prisoner and executed. A Roman well was also discovered. Scholars believe this is where soldiers dropped the body of St. Demetrius after his execution. After restoration, the church was reconsecrated in 1949.