Christian organizations established in the 10th century

Orthodox autocephalous church

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.