Constantine I of the Roman Empire - Wikipedia article on the Roman Emperor. Constantine the Great - Information on the Roman Emperor from the Catholic Encyclopedia. DIR Constantine I - Essay on the Emperor Constantine written by Hans A. Pohlsander of SUNY Albany. Flavius Valerius Constantinus - Overview of the life, reign, and influence of the Roman Emperor Constantine. Constantine the Great - Bronze coinage of Constantine the Great with emphasis on the Dafne issue and VLPP from Siscia, including a history of Constantine, glossary of reverse inscriptions, and other resources. St. Constantine the Great: Influential Figure in the History of the Church - Constantine the Great in the point of view of a modern Christian historian. Life of Constantine - Medieval Sourcebook by Eusebius of Caesarea detailing the life of the Roman Emperor Constantine.