Syon Monastery (or Sion), was a monastery of the Bridgettine Order founded in 1415 which stood until its demolition in the 16th c. on the left (northern) bank of the River Thames within the parish of Isleworth, in the county of Middlesex on or near the site of the present Georgian mansion of Syon House. It was named after the Biblical Holy “City of David which is Zion” (1 King's 8:1), built on the eponymous Mount Zion (or Sion Syon etc.). Although always referred to in early documents as a Monastery, it has in modern times come to be referred to, somewhat incorrectly therefore, as an Abbey, due to its having been presided over by an Abbess. The present article proposes for correctness to adopt the ancient terminology of Monastery, thereby following the usage of the standard reference on Syon by George James Aungier, published in 1840 (see Sources below).
Read more about Syon Monastery: Background, Foundation, Nomenclature, Order, Personnel, Expansion and Relocation, New Building, Peregrination, Return To England, Replacement By Mansion of Syon House, Resting Place For Coffin of Henry VIII, Archaeological Excavations, Sources