Γρηγόριος

Brother of Hermeias the philosopher. He was completely the opposite of Hermeias: intelligent in the extreme, and quick in his inquiries and his lessons; but otherwise he was not a peaceful soul nor did he have any serenity in his habits, rather he was somewhat disturbed. When they came from Athens↗ to Alexandria, Gregorios afterwards fell ill quite seriously so that his mind became unwieldy [for reasoning] and generally defective. So says Damaskios in the Philosophical History.