An article by Thomas J. Shahan on the emperor who was born at Acco in Palestine in 208, and murdered by his mutinous soldiers at Sicula on the Rhine.

A scholarly biography by Herbert W. Benario of Emory University, illustrated with a portrait bust.

Biography of the life and times of this emperor from Illustrated History of the Roman Empire.

Dedicated to the study of the Roman emperor (222-235) and his coinage. Essays, biography, bibliography, and images provided.

Article on this Roman Emperor, incorporating text from the 1911 Encyclopædia Britannica.