Joannes
2. Was at the head of the first commission of ten appointed by Justinian in A. D. 528 to compile the
Constitutionum Codex. In Const.
Haec quae necessario, § 4, and Const.
Summa Reipublicae, § 2, he is designated by the title "Vir excellentissimus ex-quaestore sacri palatii, consularis atque patricius."
In the subsequent revision of the code he had no part, though a person of the same name was one of the second commission of five.