. . . . . "tree" . . "Doukaina" . "Doukai" . "John Doukas" . . . . "DOUKAS DYNASTY" . . "DOUKAS" . "DOUKAI" . "HOUSE OF DOUKAS" . "Doukas family" . . "Doukas dynasty" . . "Doukas Dynasty and related family tree" . . "Doukas" . "''Dukas''" . "Doukas" . "House of Doukas" . "Doukid dynasty" . . "Doukid" . .