In Greek letters his chief works are Constantini Porphyrogeniti libri II.
DONATION OF CONSTANTINE (Donatio Constantini), the supposed grant by the emperor Constantine, in gratitude for his conversion by Pope Silvester, to that pope and his successors for ever, not only of spiritual supremacy over the other great patriarchates and over all matters of faith and worship, but also of temporal dominion over Rome, Italy and "the provinces, places and civitates of the western regions."
The famous document, known as the Constitutum Constantini and compounded of various elements (notably the apocryphal Vita S.
The genuineness of the Constitutum was first critically assailed by Laurentius Valla in 1440, whose De falso credita et ementita Constantini donatione declamatio opened a controversy that lasted until, at the close of the 18th century, the defence was silenced.
He had an extraordinary memory and a thorough knowledge of the classics, and to him we owe editions of several of the Greek historians, with excellent Latin translations, the only fault found with which is that they are too elegant: Polybii, Diodori Siculi, Nicolai Damasceni, Dionysii Halicarnassii, Appiani et Joannis Antiocheni excerpta (1634; Henri de Valois used for this edition a manuscript coming from Cyprus, which had been acquired by Peiresc); Ammiani Marcellini rerum gestarum libri 18 (1636); Eusebii ecclesiastica historia, et vita imperatoris Constantini, graece et latine (1659); Socratis, Sozomeni, Theodoreti et Evagrii Historia ecclesiastica (1668-1673).
4)&ra Eiri &v xpvo i v, eav/safrOv O a / Ia aapsIxov (Vita Constantini, 7 " Cum alii Pontifices lampadas cereosque proferrent, alii choras psallentium ducerent " (Ep. cviii.
The patriarchate of Antioch was offered him in 331, but declined (Vita Constantini, iii.