Lewis & Short

2. Clēmens, entis, m., a proper name, in later Lat. very freq.: Julius, Tac. A. 1, 23; 1, 26; 15, 73; id. H. 1, 87; 2, 12: Arretinus, id. ib. 4, 68; Suet. Dom. 11: Flavius, id. ib. 15.