Oronsay Priory was a monastery of canons regular on the island of Oronsay. It was in existence by 1353, perhaps founded by John of Islay, Lord of the Isles. It was dedicated to St. Columba, and perhaps was a continuation or a re-activation of an older foundation. Very little is known about it because of the absence of records and its remoteness from the Scottish Lowlands, but on occasions some of the Priors of Oronsay come into the records.
The priory continued in operation until at least 1560, the year of the Scottish Reformation, with the last known prior, Robert Lamont, having been elected in 1555. The lands and property of the priory were given in commendam to Maol Choluim MacDubhthaich in 1561. They were later given to the Bishop of the Isles by King James VI of Scotland after his ascendancy to the throne in 1583. The ruins have been restored and are visible today.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.