Konstantinos 138 | Prosopography of the Byzantine Empire |
| Sex | M |
| Floruit | L VII/E VIII |
| Variant Names | Constantinus |
| Ethnicity | Roman |
| Locations | Rome (residence); Rome (birthplace); Rome |
| Textual Sources | Liber Pontificalis, ed. L. Duchesne, Le liber pontificalis. Texte, introduction et commentaire, 2 vols. (Paris, 1886-92); re-issued with 3rd vol. by C. Vogel, (Paris, 1955-57) (chronicle) |
Konstantinos 138 was the father of popes Stephen III (II) and Paul (Stephanos 8 and Paulos 49); he died when his sons were still young, during the papacy of pope Gregory II (Gregorios 72; AD 715-731), leaving them in poverty: Lib. Pont. 94. 1, 95. 1. Presumably he was a native of Rome, like his sons (both "
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