Note 116 — Chapter LXXXIV · SICILIAN AFFAIRS AFTER THE DEATH OF THE ELDER DIONYSIUS — DIONYSIUS THE YOUNGER — AND DION.
Reading edition
Dion was fifty-five years of age at the time of his death, in the fourth year after his departure from Peloponnesus (Cornelius Nepos, Dion, c. 10).
His death took place seemingly about 354 B. C. He would thus be born about 408 B. C.