CAMBYUSKAN is the king of Sarre in Tartary and father of Algarsyf, Cambalus, and Canacee in The Squire's Tale. F.P. Magoun, Jr., identifies Sarre in the steppes of southern Russia as part of the western Mongol empire and suggests that Cambyuskan is not Genghis Khan (Chinggis Khan), who ruled 1162-1227. John M. Manly suggests that Chaucer may have used Marco Polo's account of his travels, from which he may have taken the name. [Algarsif: Cambalo: Canacee2: Elpheta]
Cambyuskan occurs twice in medial positions, SqT 58, 345, and five times in final rhyming position, SqT 12, 28, 42, 266, 661.