Barry Kay
Some of the drama and opera directors for whom he worked included Margaret Webster , Colin Graham , John Copley , Peter Dews and Rudolf Hartmann - with productions staged by the Royal Shakespeare Company at the Old Vic , London; Sadler's Wells Opera Company ( since 1974 English National Opera ) , Sadler's Wells Theatre , London; The Royal Opera at the Royal Opera House , Covent Garden , London; and numerous other national and international houses . 
<triplet> Royal Opera House <subj> Covent Garden <obj> location