His success in conquering Sicily earned him the surname of "the Great."
BARNABAS, in the New Testament, the surname, according to Acts iv.
The elder of these, succeeding as 3rd Baron Grantham (1781-1859), became in 1833 2nd Earl de Grey, in right of his maternal aunt, and assumed the surname of de Grey; he was lord-lieutenant of Ireland (1841-44).
Under what circumstances, and by whose selection, the surname was attached to a king, is obscure.
He earned the surname of "Pious" by banishing his sisters and others of immoral life from court; by attempting to reform and purify monastic life; and by showing great liberality to the church.