Marcellus, Orontius
was the person to whom Longinus addressed his treatise Περὶ Τέλους, or De Finibus. (Longin. Fr. 5. ed. Weiske.) He was a pupil of Plotinus. (Porphyr. Vit. Plotin. 7.) A daughter of Marcellus studied philosophy, and married Porphyry, the biographer of Plotinus. (Cyril. contr. Julian. p. 209; Eunap. Vit. Sophist. Porphyr)
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.