There are many orders derived from Saint Francis, mendicant orders, they follow different rules:
Order of Friars Minor (Franciscans) O.F.M. - from 1210
Third Order Regular of St. Francis of Penance T.O.R. - from 1221
Order of the Minims O.M. - from 1435
Order of Friars Minor Conventual (Conventual Franciscans) O.F.M. Conv. - from 1517
Order of Capuchin Friars Minor (Capuchin Franciscins) O.F.M. Cap. - from 1528
Franciscan Friars of the Atonement C.F.A. - from 1898
Franciscan Friars of the Immaculate F.I. - from 1965
In particular the Minims have a rule of perpetual abstinence from all flesh and white meat, except in case of grave illness and by order of a physician.
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