6 surviving letters between Apocras and Isidore of Pelusium, spanning 425 AD.
“To Apocras [Apokras], the sophist.”
“To Apocras the Sophist [a teacher of rhetoric].”
“To Apochras, a sophist.”
“To Apocras, a sophist.”
“To the same person.”
“To Apocras, a sophist [a teacher of rhetoric].”