Marius Maximus, homo omnium verbosissimus, qui et mythistoricis se voluminibus implicavit. Vopiscus in Hist. August. p. 242 [Vopisc. Firm. c. 1.]
He wrote the Lives of the Emperors from Trajan to Alexander Severus. See Gerard Vossius de Historicis Latin. l. ii. c. 3, in his Works, vol. iv. p. 57.