Senior British order of knighthood, founded by Edward III in about 1347. Its distinctive badge is a garter of dark blue velvet, with the motto of the order, Honi soit qui mal y pense (`Shame be to him who thinks evil of it') in gold letters. It is worn below the left knee. Its sash is also dark blue. Membership is limited to 25 knights, and to members of the royal family and foreign royalties; appointments are made by the sovereign alone. St George's Chapel, Windsor, is the chapel of the order. The Blue Riband is derived from the order's garter.