Namesakes
Romanus the Melodist
(a.k.a. Romanos) (m) ?-540 
Saints
Romanus Lecapenus
(a.k.a. Romanos) (m) c. 870-948
Roman and Byzantine Emperors 920-944
Romanus
(a.k.a. Romanos) (m) 938-963
Roman and Byzantine Emperors 959-963
Romanus Argyrus
(a.k.a. Romanos) (m) 968-1034
Roman and Byzantine Emperors 1028-1034
Romanus Diogenes
(a.k.a. Romanos) (m) c. 1030-1072
Roman and Byzantine Emperors 1067-1071