Note 053
If we give credit to the younger Victor [Epit. 41], who supposes that in the year 323 Licinius was only sixty years of age, he could scarcely he the same person as the patron of Tiridates; but we know from much better authority (Euseb. Hist. Ecclesiast. 1. x. c. 8) that Licinius was at that time in the last period of old age: sixteen years before, he is represented with grey hairs and as the contemporary of Galerius. See Lactant. c. 32. Lucinius was probably born about the year 250.
Note to Chapter 13 of DECLINE & FALL by Gibbon