GetPassage urn:cts:pdlrefwk:viaf88890045.003.perseus-eng1:I.joannes_131 urn:cts:pdlrefwk:viaf88890045.003.perseus-eng1:I.joannes_131
Joannes

3. An advocate in the courts of the praefecti praetoriorum at Constantinople, was one of the commission of sixteen, headed by Tribonian, who were employed by Justinian (A. D. 530-533) to compile the Digest. (Const. Tunta, § 9, Const. Δέδωκεν, § 9.) He is a different person from the Joannes who was at the head of the commission appointed to compile the first Constitutionum Codex.

Works
repetita praelectio codis

It appears from Const. Cordi, § 2, that he was one of the commission of five, headed by Tribonian, who drew up the repetita praelectio codis, which was published in A. D. 534.