Attianus
Could not find Attianum in Logeion dictionaries.
Attianum Proper-name adjective: neuter vocative singular, Proper-name adjective: masculine genitive plural, Proper-name adjective: masculine accusative singular, Proper-name adjective: neuter genitive plural, Proper-name adjective: neuter nominative singular, Proper-name adjective: neuter accusative singular of Attianus
a Roman knight, was the tutor, and afterwards the intimate friend, of Hadrian. On the death of Trajan, Attianus, in conjunction with Plotina, caused Hadrian to be proclaimed emperor; and the latter after his accession enrolled Attianus in the senate, made him praefectus praetorio, and conferred upon him the insignia of the consulship. He subsequently fell, however, under the displeasure of the emperor. (Spart. Hadr. 1, 4, 8, 15; D. C. 69.1.)