Rule of St. Patrick (dealing with the relation between the Church and the Tribe), ed. by J. G. O’Keeffe, Eriu, i, pp. 216–224.

Riagul Cormaic Maic Cuilenain, Eriu, i, p. 192.

Rule of St. Mochuda, referred to in Revue Celtique, vol. 30, p. 113.

Regula cujusdam patris ad Monachos, et Regula cujus patris ad Virgines, Migne, P. L., 66, col. 987 seq.

Rules of St. Carthage and of St. Maelruan in Irish Ecclesiastical Record, vol. i.

Rule of St. Columba, in Skene’s Celtic Scotland, ii, p. 508 seq.; also in Haddan and Stubbs’ Councils and Ecclesiastical Documents, vol. ii, part i, p. 119. (Irish and English translation).

Regula Monarcherum of Columbanus in Migne, P. L., tom. 80.

Sedulius, Writings, in Migne, P. L., tom. 103.

Sedulius, De Rectoribus Christianis, published by Cardinal Mai in Specilegium Romanum, also by Hellman, Munich, 1908.