2. SOSII, the name of two brothers, booksellers at Rome in the time of Horace (Hor. Ep. 1.20. 2, Art. Poet. 345). They were probably freedmen, perhaps of the Sosius mentioned above.
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