(Ξεναῖος). the architect who superintended the building of the walls of Antioch under Seleucus I. (Malal. Chron. p. 200 ed. Bonn. ; Müller, Dissertationes Antiochienae; Archäol. d. Kunst, § 149. n. 4).
[P.S]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