Of the Order of Reformed Cistercians, near Mortagne, Diocese of Seez, France; founded 1122 by Rotrou II, count of Perche; became an abbey, 1140, and was united to the Order of Citeaux, 1147; declined in the 16th century and was restored by de Rance. Suppressed, 1790, it was repurchased, 1815, by Dom Augustin de Lestrange, and rebuilt. The different congregations of Trappists are now united in a single order of Reformed Cistercians, popularly called Trappists.