He was of a noble family in Wales, and educated under the care of St.
Iltut; and passing over into that part of France called the province
of Domnone, he founded a monastery between the rivers of Rancé and
Arguenon, on a piece of ground which was given him by Jona, the lord
of the country. His many extraordinary virtues drew the attention of
king Childebert, who very pressingly invited him to Paris, where he
was received by this prince and his royal consort Ultrogotha with
every possible demonstration of the highest respect. At his return he
had the affliction to hear that his protector Jona was stripped of
his possessions, and murdered by Conomor. Happily however he arrived
time enough to shelter that unfortunate nobleman’s son Judual from
the bloody tyrant’s cruelty, and conveyed him safely to England:
whence Judual afterward returned, and recovered his inheritance. The
saint is styled bishop, though he had no fixed see. For it was then
an established custom in Brittany to honor the principal abbots with
the episcopal dignity. The year in which St. Leonorus died is not
known. His body was translated to a parochial church near St. Malo,
which still retains the name of St. Lunaire: here his tomb is shown,
which is empty, his relics being inclosed in a shrine. The feast of
his translation is on the 13th of October, but he is principally
honored in the several diocesses of Brittany on the 1st of July. He
is patron of many churches. See the Breviary of Leon, of the abbey of
St. Meen, &c. also Lobineau, Vies des SS. de Bretagne, p. 91, and the
Martyrology of Usuard.