Pachomius the Great

Pachomius (; ''Pakhomios''; ; c. 292 – 9 May 348 AD), also known as Saint Pachomius the Great, is generally recognized as the founder of Christian cenobitic monasticism. Coptic churches celebrate his feast day on 9 May, and Eastern Orthodox and Catholic churches mark his feast on 15 May or 28 May. In Lutheranism, he is remembered as a renewer of the church, along with his contemporary (and fellow desert saint), Anthony of Egypt on 17 January. Provided by Wikipedia