This saint was a fervent disciple of St. Paul of Leon, in Great Britain,
his own country, accompanied him into Armorica, led an anchoretical life
near him in the country of Ack, and afterwards in the isle of Baz. That
great saint chose him coadjutor in his bishopric, when he retired a
little before his death. St. Joavan survived him only one year. He is
titular saint of two parish churches in the diocese of St. Paul of Leon,
&c. See Lobineau, Vies des Saints de la Bretagne, p. 71, from the
breviary and tradition of that church, though the life of St. Jovian,
copied by Albert the Great. &c., deserves no regard.