Llanrothal is a small village and historical parish in Herefordshire, England in the Monnow Valley, on the border with Monmouthshire, Wales. The River Monnow flows near here along the border. The village is located 5 miles by road northwest of Monmouth. It contains a 12th-century church, St John the Baptist's which stands in a remote position close to the England–Wales border overlooking the river.

Cwm was a Jesuit gathering place, Ecclesiastical province and college in Llanrothal, Herefordshire, England. It became a Jesuit college in 1622. Based in a large farmhouse, the Cwm included two houses, called "Upper Cwm" and "Lower Cwm". They were divided by a walled forecourt and during their prime in the early 17th century each was able to generate £60 annually in rents from its own land.