Postumus, Q. Seius
a Roman eques, said by Cicero to have been poisoned by P. Clodius, because he was unwilling to sell his house to the latter. (Cic. pro Dom. 44, 50, de Harusp. Resp. 14.)
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.