Note 6 — Chapter I · THE CHURCHES IN THE WEST.
Reading edition
‘Basso et Antiocho Coss. (A.D. 431) ad Scotos in Christum credentes ordinatus a papa Cœlestino Palladius primus episcopus mittitur.’—Prosper, Chron.
‘Et ordinato Scotis Episcopo, dum Romanam insulam studet servare Catholicam, fecit etiam barbaram Christianam.’—Prosper, Cont. Collat. xxi. (A.D. 432).
There can be now no question that the Scots to whom he was sent were those of Ireland.