Nicene and Post-Nicene Fathers, Ser. II, Vol. III:
Jerome and Gennadius. Lives of Illustrious Men.: Acilius Severus the senator.

p. 382 Chapter CXI.

Acilius Severus 2543 of Spain, of the family of that Severus to whom Lactantius’ two books of Epistles are addressed, composed a volume of mingled poetry and prose which is a sort of guide book to his whole life. This he called Calamity or Trial. 2544 He died in the reign of Valentinianus.

Footnotes

Died before 376. Fabricius and Migne read Aquilus, Honorius has Achilius but the mss. read as above. This is the only source of information and the work is lost.

Trial“Vicissitudes or proofs.” Matougues.