Orval Abbey is a Cistercian monastery founded in 1132 in the Gaume region of Belgium and is located in Villers-devant-Orval, part of Florenville in the province of Luxembourg. The abbey is well-known for its history and spiritual life but also for its local production of a Trappist beer (see Brasserie d'Orval) and a specific cheese.
|} The site has been occupied since the Merovingian period, and there is evidence that there was already a chapel here in the 10th century. In 1070, a group of Benedictine monks from Calabria settled here, at the invitation of Arnould, Count of Chiny, and began construction of a church and a monastery, but after some forty years, possibly because of the death of Count Arnould, they moved away again. They were replaced by a community of Canons Regular, who completed the construction work: the abbey church was consecrated on 30 September 1124.
Around 1252, the monastery was destroyed by a fire; the rebuilding took around 100 years.
In the literary field the monks of Orval did not much distinguish themselves. The only noteworthy writer was Aegidius or Gilles d'Orval, who lived in the first half of the thirteenth century. He wrote the continuation, to the year 1251, of the "Gesta Pontificum Leodiensium", which had been written up to the year 1048 by Heriger of Lobbes and Anselm of Liège (Mon. Germ. Script., XXV, 1-129). 
During the 15th and 16th centuries, the various wars between France and various neighbouring regions (Burgundy, Spain) had an important impact on Orval. At one stage a foundry was established on the site. In 1637, during the Thirty Years' War, the abbey was pillaged and burnt by French mercenaries.
In the 17th century, the abbey converted to the Trappist branch of the Cistercian order, but reverted back to the Rule of the main order in around 1785.
In 1887, the land and ruins were acquired by the Harenne family. They donated the lands to the Cistercian order in 1926 so that monastic life could resume on the site. Between 1926 and 1948, under the direction of the Trappist monk Marie-Albert van der Cruyssen, the new monastery was constructed, and in 1935 Orval regained the rank of abbey. On 8 September 1948, the new church was consecrated.
The ruins of the medieval buildings remain on the site and are available to view.
The legend of Orval
There is a legend of the abbey's foundation, purporting to explain the name '"Orval" and the coat of arms. According to this, the widowed Mathilda of Tuscany was visiting the site, when she lost her wedding ring in a spring, to her great distress. When she prayed for the return of the ring, a trout appeared on the surface of the water with the ring in its mouth. She exclaimed "Truly this place is a Val d'Or", from which the name "Orval" is derived, and in gratitude made available the funds for the foundation of the monastery here. The abbey arms show the trout and ring. The spring still supplies water to the monastery and its brewery.