GRIMLAICO (Grimlaicus). - Author of the first Rule for “recluses,” dating from the ninth century. Nothing is known of his life. Examination of the Rule—the only writing of his that has survived—would lead one to regard him as a priest and a “recluse” in the diocese of Metz.
The Regula solitariorum, intended for voluntary “recluses” or “prisoners” (“carcer retrusionis” is the term used in chap. 14 for their “cell,” described in chap. 16), is, rather than a series of prescriptions, a spiritual guide for the recluse, including the priest. The author, who draws upon many sources, especially the Rule of St. Benedict, reveals himself to be learned, pious, and discreet; he deals with detachment from the world and contemplation; for spiritual progress he strongly recommends study (chap. 20: PL 103, 599). Published by Luca d'Achery (Regula solitaria, Paris 1653), it was included in the Codex Regularum of Luca Holstenio (Rome 1661; Paris 1663), whence it passed into PL 103, 573-664.