4. The younger sister of Caesar the dictator, was the wife of M. Atius Balbus [BALBUS ATIUS], by whom she had Atia, the mother of Augustus [ATIA]. Julia died in B. C. 52-51, when her grandson, Augustus, was in his twelfth year (Suet. Aug. 8; Quint. 12.6), and he pronounced her funeral oration. Nicolaüs of Damascus (100.3), indeed, places her decease three years earlier, in her grandson's ninth year, and, as a contemporary, his evidence might be preferable, were there not apparent in his narrative a wish to exalt the genius of Augustus by abating from his age at the time he pronounced the oration. (See Weichert, de Imp. Caes. Aug. Script. i. p. 11, Grimae, 1835.)
A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890