Sosius
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.
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.