Constantine VII (905-956) called Porphyrogenitus, was Roman emperor of the East from 913 to 959. He was born in Constantinople in September 905. The son of Leo VI by his mistress, later fourth wife, Zoe Carbonopsina, Constantine was legitimized by imperial baptism (January 6, 906).
His early life was clouded by sickness and misfortune. From 912 to 944, he was successively under the domination of his uncle, Emperor Alexander, of his mother Zoe, and of the usurper Romanus I Lecapenus, whose daughter Helena he married (May 4, 919). Only in January 945 did Constantine succeed in gaining possession of the throne that was rightfully his. He died in Constantinople, universally regretted, on November 9, 959.
Constantine's high reputation was won in the realms of literature and the writing of history, and his patronage of all the arts was catholic and beneficent. He became, moreover, in his years of power, an accomplished diplomat. There exist luminating accounts of embassies to or from Italy, Germany, Spain, Russia, and Hungary. He also tried by law to protect the property rights of small landowners and soldiers.
Among the writings with which Constantine was personally concerned is the De thematibus (On the Provinces), a historical and topographical account of the Roman provinces as constituted in his day. More valuable is his account, in the so-called De administrando imperio (compiled 948-952), of the history of the occupants of countries outside the imperial borders; based on information from natives of these countries, this account is surprisingly accurate. His third great work, the so-called De cerimoniis aulae byzantinae, is a minute description of imperial ceremonial, one of the most important documents surviving from the Middle Ages. Constantine also wrote a charming and informative life of his grandfather, Basil I.
His enforced seclusion during the reign of his father-in-law, though bitterly resented by Constantine, gave him leisure for those pursuits that have put mankind forever in his debt.