The Rule of life was given to the early Carmelites by St. Albert Avogadro between the years 1206 - 1214.
It was amended and confirmed by his Holiness Pope Innocent IV.
In the legislation of the Discalced Carmelite Nuns, the Rule has a privileged place, since it is a primordial document with a two-fold value: spiritual and normative.
The eremitic Rule of St. Albert is the shortest of the rules of consecrated life in existence of the Roman Catholic church.
https://static1.squarespace.com/static/5e16689d2af57f45b383b4d9/t/5e2114f412540e1f1c713d6b/1579226356261/RuleofStAlbert.pdf
