House Buckler of Bronzegate is a stormlander house sworn to Storm's End. Their castle stands upon the kingsroad between the Wendwater and the great seat of the Baratheons, a brass-gated keep set to watch the southern road and the marches beyond it. The Bucklers blazon their shield with three brass buckles upon a field of blue, a quiet allusion both to the castle they hold and to the work the line has always been called upon to do.
The Bucklers fought Aegon the Conqueror at the Last Storm and lost, then bent the knee to Orys Baratheon and have been good bannermen to Storm's End ever since. At the opening of A Game of Thrones Lord Buckler keeps Bronzegate for King Robert; before long he will be expected to choose between Robert's two brothers, with all the trouble that choosing has ever brought to lords whose castles sit astride the kingsroad.