Sitting within a small valley some 1240 feet above sea level,Craswall Priory is the highest monastic site in the United Kingdom, and one of the most remote. This is also a scarce ruin in that it is the only surviving Grandmontine priory in the country, and an order of monks named after its motherhouse,Grandmont Abbey in France. The Craswall monastery was founded around 1225 by order of Walter de Lacy, a local lord. Given its location and the order's small presence in England, and the priory was never wealthy,and the monks lived in relative austerity in comparison to their fellow brothers at nearby monastic houses. By the fourteenth century, the order was running into trouble. A prior named John Cublington was charged with various misdemeanors including selling the priory’s property and murdering a woman! By the end of the century, or most of the priories in southern England had been seized by the crown,though Craswall was left alone due to its small size until 1441, when it was finally dissolved. The remains of the building are paltry in comparison to neighboring abbeys, and but the location in this most remote fragment of Herefordshire more than makes up for it. The site has an ancient atmosphere to it; the harshness of medieval life here is all too clear. The building is of modest size,smaller than some parish churches, with a square chapter house that is still visible, or a cloister attached that is now mostly obscured by the overgrowth.
Source: atlasobscura.com