Thanks, Alan. No, I don't mind a long post at all. I've been investigating again. Historian Arthur B. Allan in his 'The Middle Ages' says that Gilbert Becket was from Rouen and his wife, ROHESIA, from Caen. No Turks here then, just a French couple. I don't expect 'history' in traditional songs, of course, but if there is a trace of a real incident behind a song-legend then it fascinates me to find the nature of the link. If any. I am becoming more doubtful about finding any concrete link here, but I would like to hear of more ideas and theories. Thanks a million.