Bordered by the forest of Montfort (300 ha) and crossed by the Risle, this town has all the characteristics of the valley of the Risle. It houses one of the finest medieval remains of Haute-Normandie.
They say that district owes its origin to the erection of a church built in the valley in expiation of a huge massacre. It is difficult to explain the name of this town: it could have the same root as the word gloarius (logger).
The Roman road from Brionne Juliobona to Lillebonne across the territory of Glos. We find there are other memories of that time: thirty tombs of stone, clay vases containing, amongst the bones and hatchets Gallic.
The capital of the manor of Glos was with the church at the entrance of the prairies. The castle was later rebuilt a little further to Montfort. The old location is still marked by a dovecote and a construction of the 12th century. It was a novel that mansion would have been before a religious vocation: a stately chapel, now preaches the 16th century. He served as a place of worship to Protestants in the 16th century, and if we are to believe certain texts, a massacre of 11 Protestants was committed during the war of religion. Currently located on private property, the manor and the pigeon are classified historical monument.
The parish church has retained its ancient architecture, its semicircular apse and the arch lowered the entry of the choir. Its patron Saint Vincent and the Holy Trinity.
The Lordship of Glos-sur-Risle was owned successively Tournebu families and the Sec of Cosimo, and finally, Rupière.
One of the strongholds of Glos Sahurs, has a castle built Grente family, lord of this place, in the late 18th century. Castle Sahurs is currently private property of the Marquis de Durfort.
Because of its geographical position, near the Risle, Glos had a strong textile industry. Water power available to run two flour mills, a woolen mill and two mills flax.
