Mall, nearly opposite to the present Opera Colonnade, through which they had ascertained the equipage of Thynne was likely to pass. As soon as the coach appeared in sight, they all three rode up to the window, and, by their imposing attitude, compelled the coachman to halt. One shot only was fired, which was from a musketoon, carried by Borotski. So true, however, was the aim, that as many as five bullets entered the body of his victim. Thynne was forthwith carried to his own residence, where he lingered till about six o'clock the following morning, when he expired."[64] Königsmark attempted to escape, but he was arrested at Gravesend at the very moment that he was about to set foot on a foreign vessel. He was immediately brought to trial, and, after some delay, acquitted. His accomplices were condemned to death, and, on March 10, executed in Pall Mall, on the spot where they had committed the atrocious crime. Thynne was buried in Westminster Abbey, and a monument in white marble, representing the tragedy in bas-relief, was erected to his memory. Thus, in the language of Lawrence Echard, the historian, Lady Elizabeth Percy had been a "virgin widow" twice ere, on May 30, 1682--at the age of fifteen--she became a wife. Her third husband was Charles Seymour (1662-1748), the sixth Duke of Somerset, commonly called "the proud duke." By an arrangement made before the marriage, he assumed the surname and arms of Percy, "but from that stipulation he was released when her grace attained her majority." The duke and duchess lived "in great state and magnificence" at Northumberland House. The duchess died in 1722, and the duke, dying in 1748, was succeeded by his eldest son, Algernon, Earl of Hertford and seventh Duke of Somerset, who, in 1749, was created Baron Warkworth of Warkworth Castle, Northumberland, and Earl of Northumberland, with remainder, in default of male issue, to Sir Hugh Smithson, Bart., a country gentleman of Stanwick, in Yorkshire, who had married his only daughter, the Lady Elizabeth Seymour. Sir Hugh Smithson was raised to the dukedom of Northumberland in 1766, and the title remains with his descendants at the present day. Algernon Seymour greatly improved the Strand front of Northumberland House, and built the gallery, or great room, which formed the western wing of the south side. In the cornice, or balustrading, on the top of the south front he had inserted the letters and date: A.S.P.N. (Algernon Seymour Princeps Northumbriæ), A.D. 1749. [Illustration: CHARING CROSS, BEFORE THE BUILDING OF NORTHUMBERLAND AVENUE.]