ated "i ccondae Corcaige ataid na Desi Muman." Not only
Imokilly but all Co. Cork, east of Queenstown [Cobh] and north to the
Blackwater, seems to have acknowledged Mochuda's jurisdiction. At
Rathbreasail accordingly (teste Keating, on the authority of the Book of
Cloneneigh) the Diocese of Lismore is made to extend to Cork,--probably
over the present baronies of Imokilly, Kinatallon, and Barrymore. That
part, at least, of Condons and Clangibbon was likewise included is
inferrible from the fact that, as late as the sixteenth century
visitations, Kilworth, founded by Colman Maic Luachain, ranked as a
parish in the diocese of Lismore. Further evidence pointing in the same
direction is furnished by Clondulane, &c., represented in the present
Life as within Carthach's jurisdiction.

The Rule of St. Carthach is one of the few ancient Irish so-called
monastic Rules surviving. It is in reality less a "rule," as the latter
is now understood, than a series of Christian and religious counsels
drawn up by a spiritual master for his disciples. It must not be
understood from this that each religious house did not have it formal
regulations. The latter however seem to have depended largely upon the
abbot's spirit, will or discretion. The existing "Rules" abound in
allusions to forgotten practices and customs and, to add to their
obscurity, their language is very difficult--sometimes, like the
language of the Brehon Laws, unintelligible. The rule ascribed to
Mochuda is certainly a document of great antiquity and may well have
emanated from the seventh century and from the author whose name it
bears. The tradition of Lismore and indeed of the Irish Church is
constant in attributing it to him. Copies of the Rule are found in
numerous MSS. but many of them are worthless owing to the incompetence
of the scribes to whom the difficult Irish of the text was
unintelligible. The text in the Leabhar Breac has been made the basis
of his edition of the Rule by Mac Eaglaise, a writer in the 'Irish
Ecclesiastical Record' (1910). Mac Eaglaise's edition, though it is not
all that could be desired, is far the most satisfactory which has yet
appeared. Previous editions of the Rule or part of it comprise one by
Dr. Reeves in his tract on the Culdees, one by Kuno Meyer in the 'Gaelic
Journal' (Vol. V.) and another in 'Archiv fuer C.L.' (3 Bund. 1905), and
another again in 'Eriu' (Vol. 2, p. 172), besides a free translation of
the whole rule