Note 670 — APPENDIX A TRADITIONAL MISCONCEPTIONS OF THE ORIGIN OF THE OSMANLIS AND THEIR EMPIRE
Reading edition
This story in full in Formanti, 2-3; Vertot, ii. 97-8; Spandugino, 183. Leunclavius, in Pandectes, 103, says that Nicetas Choniates mentions such a renegade Comnenus, but calls him Isaac.