Note 1099 — Chapter III · BIRTH AND FORTUNES OF THE ELDER JUSTIN: THE ORIGINS OF JUSTINIAN
Reading edition
Almost certainly: the correct form would have been Justinus Sabbatianus, but the Byzantines were ignorant or varied old rules ad lib. There seems to have been no classical Justinian, but two of that name flit across the stage under Honorius; Zosimus, v, 30; vi, 2.