the three constituent countries of the united kingdom have patron saints: saint george and saint andrew are represented in the flags of england and scotland respectively. these two flags combined to form the basis of the great britain royal flag of 1604. saint david is the patron saint of wales. there are many other british saints. some of the best known are cuthbert, columba, patrick, margaret, edward the confessor, mungo, thomas more, petroc, bede, and thomas becket.