Grestain Abbey (Abbaye Notre-Dame de Grestain) was an 11th century Benedictine monastery. Closely associated with the family of William, Duke of Normandy, the abbey was instrumental in the Normans taking control over the Catholic Church in England in the centuries following the Norman Conquest of England, establishing new churches and priories in England, and Abbots of Grestain ordained many English priests. Many churches mentioned in the Domesday Book cite Grestain as the founding establishment.
The Abbey was founded in 1050 by Herluin de Conteville and his wife Arlette, mother of William the Conqueror. Herluin, a victim of leprosy, was said to have seen a vision of the Blessed Virgin Mary who told him to take a spa treatment at the source of the Carbec stream in Grestain (Carbec meaning 'the Stream of Kari'). Cured, he decided to build an abbey in the nearby Valley of Vilaine dedicated to the Virgin and a chapel at Carbec, a site also dedicated to the healing spring of Saint-Méen. Herluin's son, Robert de Mortain, half-brother of William, was the principal benefactor, endowing it with his revenues from England.
In 1358, the abbey was sacked by the Anglo-Navarrais. The monks took refuge at their safe house in Rouen, in the parish of Saint-Eloi. Between 1364-1365 the abbey was attacked once more. On the return of the monks, the abbey had been partly destroyed and nearly rased to the ground.
The abbey was officially closed in 1757 on the orders of the bishop. The church buildings were demolished around 1766 and the rest of abbey destroyed in 1790; of these buildings, only a few ruins remain, integrated into the Château de La Pommeraye (a private property): a defensive wall, a 13th-Century portal, an 18th century manor with a 13th century floor, and remains of the church.A monunment has been erected to the memory of the founders who were buried in the now defunct church: Arlette, Herluin and Robert de Mortain, as well as Robert's wife, Mathilde de Montgomerie, daughter of Roger de Montgomerie.References:
Roman Walls of Lugo are an exceptional architectural, archaeological and constructive legacy of Roman engineering, dating from the 3rd and 4th centuries AD. The Walls are built of internal and external stone facings of slate with some granite, with a core filling of a conglomerate of slate slabs and worked stone pieces from Roman buildings, interlocked with lime mortar.
Their total length of 2117 m in the shape of an oblong rectangle occupies an area of 1.68 ha. Their height varies between 8 and 10 m, with a width of 4.2 m, reaching 7 m in some specific points. The walls still contain 85 external towers, 10 gates (five of which are original and five that were opened in modern times), four staircases and two ramps providing access to the walkway along the top of the walls, one of which is internal and the other external. Each tower contained access stairs leading from the intervallum to the wall walk of town wall, of which a total of 21 have been discovered to date.
The defences of Lugo are the most complete and best preserved example of Roman military architecture in the Western Roman Empire.
Despite the renovation work carried out, the walls conserve their original layout and the construction features associated with their defensive purpose, with walls, battlements, towers, fortifications, both modern and original gates and stairways, and a moat.
Since they were built, the walls have defined the layout and growth of the city, which was declared a Historical-Artistic Ensemble in 1973, forming a part of it and becoming an emblematic structure that can be freely accessed to walk along. The local inhabitants and visitors alike have used them as an area for enjoyment and as a part of urban life for centuries.
The fortifications were added to UNESCO"s World Heritage List in late 2000 and are a popular tourist attraction.