The embroidered lavender dress coat, which he wore at his presentation to Marie Antoinette in 1781 or 1782, when in attendance on the Duchess of Manchester, is still preserved as an heirloom in the castle. A pair of pistols presented to Captain Hamilton, R.N., C.B., after the battle of Navarino, by the French Admiral De Rigny, for his gallant services to the French squadron, are also to be seen at Killyleagh. In 1842 Captain Archibald Rowan Hamilton married Miss Caldwell, of Cheltenham, and seven years later they began to restore the castle. In 1862 the marriage of the late Lord Dufferin and Clandeboye, with Hariot Georgina, eldest daughter of the late Captain Archibald Rowan Hamilton, 5th Dragoon Guards, was celebrated in the evening of October 23rd, in the drawing-room of the castle. When the present owner of the castle, Colonel Gawen Rowan Hamilton, came of age in 1864, Lord Dufferin handed him the keys of the gate-tower, to which reference has already been made, saying, “The time is now come for me to hand over to you this gate-house, a gift which I had originally destined for your father, but which, with equal pleasure, I now make to you. I trust that you and your descendants may long continue to enjoy it.” AUTHORITIES CONSULTED. Lowry, “The Hamilton Manuscripts.” Knox, “History of County of Down.” Praeger, “Official Guide to County Down.” S. M. S., “Killyleagh Castle, County of Down,” in _Dublin Penny Journal_. Hanna, “The Break of Killyleagh,” in _Ulster Journal of Archæology_. Newspaper Cuttings lent by Mrs. Rowan Hamilton. _KING JOHN’S CASTLE, CARLINGFORD_ This is one of the few names in Ireland which clearly show a Danish influence. The Irish designation was Cairlinn, and the present name simply means the “_fiord_ of Cairlinn,” or Carlingford. It is situated in the County of Louth, on the southern shore of the bay at the foot of the Mourne Mountains, about eleven miles east-north-east of Dundalk. It was a most important town of the Pale, and at one time nearly every building of any size was of a fortified type. There are still to be seen the remains of three strongholds called at the present time King John’s Castle, Taffe’s Castle, and Lee’s Castle. King John’s Castle is traditionally supposed to have been erected by that monarch’s orders in 1210 to protect the mountain pass of Goulin. We know that King John was at “Kerlingford,” but Grose considers that it is more likely the fortress was built by De Lacy or De Courcy.