Note 93 — III. FRANKISH AND VENETIAN GREECE (continued 3)
Reading edition
Rubió y Lluch, Los Navarros en Grecia, p. 309, n. 2; a much more probable explanation, derived from the word bort (“bastard”), than that of Ducange (note to Cinnamus, p. 392), who says that he was so called because our Black Prince had conferred on him the freedom of Bordeaux.