Christian religious orders established in the 11th century

Augustinians are members of several religious orders that follow the Rule of Saint Augustine, written about 400 A.D. by Augustine of Hippo. There are two distinct types of Augustinians in Catholic religious orders dating back to the 12th–13th centuries: Various congregations of Canons Regular follow the Rule of Saint Augustine, embracing the evangelical counsels and leading a semi-monastic life, while remaining committed to pastoral care appropriate to their primary vocation as priests. They generally form one large community which might serve parishes in the vicinity, and are organized into

The Camaldolese Hermits of Mount Corona () are a Catholic monastic order of pontifical right for men founded by St. Romuald. Its name is derived from the Holy Hermitage () in Camaldoli, high in the mountains of Tuscany, Italy, near the city of Arezzo. Members of that community add the postnominal letters ECMC after their names. A second community, the Benedictine Camaldolese, are also based at Camaldoli and add the postnominals OSB Cam. Apart from the Catholic monasteries, ecumenical Christian hermitages with a Camaldolese spirituality have arisen as well.

Roman catholic religious order

The Vallombrosians (alternately spelled Vallombrosans, Vallumbrosians or Vallumbrosans) are a monastic religious order in the Catholic Church. They are named after the location of their motherhouse founded in Vallombrosa (), situated 30 km from Florence on the northwest slope of Monte Secchieta in the Pratomagno chain. They use the postnominal abbreviation OSBVall to distinguish themselves from other Benedictines, who generally use the abbreviation OSB.

thumb|right|Grandmontine in surplice. Grandmontines were the monks of the Order of Grandmont, a religious order founded by Saint Stephen of Thiers, towards the end of the 11th century. The order was named after its motherhouse, Grandmont Abbey in the eponymous village, now part of the commune of Saint-Sylvestre, in the department of Haute-Vienne, in Limousin, France. They were also known as the Boni Homines or Bonshommes.