Complex sentence: In 435 he was appointed member of the second commission for the formulation of the "Codex Theodosianus" and, when the Codex was issued in 438, Antiochus was listed among its formulators.
Split into simpler sentences: In 435 he was appointed member of the second commission for the formulation of the "Codex Theodosianus". When the Codex was issued in 438, Antiochus was listed among its formulators.