Châlons Cathedral is a Roman Catholic church in Châlons-en-Champagne. The cathedral is the seat of the Bishop of Châlons and was consecrated in 1147 October 26, by Pope Eugene III.
Jean-Jacques Arveuf-Fransquin designed the neo-Flamboyant organ case of Châlons Cathedral. The case was created by the cabinetmaker Etienne Gabriel Ventadour, and housed the instrument made by John Abbey, who delivered the instrument in 1849. The cathedral is also noted for its stained glass windows.References:
The Basilica of Santa Maria in Trastevere is one of the oldest churches of Rome. The basic floor plan and wall structure of the church date back to the 340s, and much of the structure to 1140-43. The first sanctuary was built in 221 and 227 by Pope Callixtus I and later completed by Pope Julius I.
The inscription on the episcopal throne states that this is the first church in Rome dedicated to Mary, mother of Jesus, although some claim that privilege belongs to the Basilica di Santa Maria Maggiore. A Christian house-church was founded here about 220 by Pope Saint Callixtus I (217-222) on the site of the Taberna meritoria, a refuge for retired soldiers. The area was made available for Christian use by Emperor Alexander Severus when he settled a dispute between the Christians and tavern-keepers.
The church underwent two restorations in the fifth and eighth centuries and in 1140-43 it was re-erected on its old foundations under Pope Innocent II.