There is more than one meaning of Arcadius discussed in the 1911 Encyclopedia.
His address to Arcadius (De regno) is full of advice as to the studies of a wise ruler in such perilous times.
His extant works are - (i) a speech before Arcadius, De regno; (2) Dio, sive de suo ipsius instituto, in which he signifies his purpose to devote himself to true philosophy; (3) Encomium calvitii (he was himself bald), a literary jeu d'esprit, suggested by Dio Chrysostom's Praise of Hair; (4) De providentia, in two books; (5) De insomniis; (6) 157 Epistolae; (7) 12 Hymni, of a contemplative, Neoplatonic character; and several homilies and occasional speeches.
(401-450) succeeded his father Arcadius as emperor of the East in 408.
ARCADIUS (378-408), Roman emperor, the elder son of Theodosius the Great, was created Augustus in 383, and succeeded his father in 395 along with his brother Honorius.