The Cistercians, (/sɪˈstɜːrʃənz/)[1] officially the Order of Cistercians (Latin: (Sacer) Ordo Cisterciensis, abbreviated as OCist or SOCist), are a Catholic religious order of monks and nuns that branched off from the Benedictines and follow the Rule of Saint Benedict. They are also known as Bernardines, after the highly influential Bernard of Clairvaux or as White Monks, in reference to the colour of the "cuculla" or cowl (choir robe) worn by the Cistercians over their habits, as opposed to the black cowl worn by Benedictines.
The term Cistercian derives from Cistercium,[2] the Latin name for the locale of Cîteaux, near Dijon in eastern France. It was here that a group of Benedictine monks from the monastery of Molesme founded Cîteaux Abbey in 1098, with the goal of following more closely the Rule of Saint Benedict. The best known of them were Robert of Molesme, Alberic of Cîteaux and the English monk Stephen Harding, who were the first three abbots. Bernard of Clairvaux entered the monastery in the early 1110s with 30 companions and helped the rapid proliferation of the order. By the end of the 12th century, the order had spread throughout what is today France, Germany, England, Wales, Scotland, Ireland, Spain, Portugal, Italy, Scandinavia and Eastern Europe.
The keynote of Cistercian life was a return to literal observance of the Benedictine Rule. Rejecting some of the developments, the reform-minded monks tried to live monastic life as they thought it had been in Saint Benedict's time; in various points they went beyond it in austerity. The most striking feature in the reform was the return to manual labour, especially agricultural work in the fields, a special characteristic of Cistercian life.[3] The Cistercians also made major contributions to culture and technology in medieval Europe: Cistercian architecture is considered one of the most beautiful styles of medieval architecture;[4] and the Cistercians were the main force of technological diffusion in fields such as agriculture and hydraulic engineering.
Many abbeys traditionally supported themselves through agriculture, vineyards, and brewing ales. Over the centuries, however, education and scholarship came to dominate the life of many monasteries. A reform movement seeking a simpler lifestyle began in 17th-century France at La Trappe Abbey, and became known as the Trappists. The Trappists were eventually consolidated in 1892 into a new order called the Order of Cistercians of the Strict Observance (Latin: Ordo Cisterciensis Strictioris Observantiae), abbreviated as OCSO.[5] The Cistercians who remained within the Order of Cistercians are called the Cistercians of the Common Observance (OCist), distinguishing them from the Trappists.
https://en.wikipedia.org/wiki/Cistercians