Devonshire House Ball of 1897 participant Arthur, Duke of Connaught (1850-1942)
The Devonshire House Ball or the Devonshire House Fancy Dress Ball was an elaborate fancy dress ball, hosted by the Duke and Duchess of Devonshire, held on 2 July 1897 at Devonshire House in Piccadilly to celebrate the Diamond Jubilee of Queen Victoria.  Due to the many prominent royals, aristocrats, and society figures who attended as well as the overall lavishness of the ball, it was considered the event of the 1897 London Season.Notable attendees
At the ball, the attendees included:
The Prince of Wales, who dressed as the Grand Master of the Knights Hospitallers of Malta, and The Princess of Wales as Queen Marguerite de Valois and Hon. Louvima Knollys (daughter of Viscount Knollys) as her page.
The Duke of York as George Clifford, 3rd Earl of Cumberland, and The Duchess of York as a Lady of the Court of Marguerite de Valois.
Czar Nicholas II of Russia and Czarina of Russia dressed in old Court dress of the time of Peter the Great
Alfred, Duke of Saxe-Coburg and Gotha, as Robert I, Duke of Normandy
Spencer Cavendish, 8th Duke of Devonshire, as The Emperor Charles V, and The Duchess of Devonshire, who dressed as Zenobia, Queen of Palmyra.
Lady Evelyn Cavendish (later Duchess of Devonshire), who attended in the dress of a Lady at the Court of the Empress Maria Theresa, while her husband, who later became the 9th Duke of Devonshire, dressed in sixteenth-century costume.
Prince Arthur, Duke of Connaught and Strathearn and Princess Louise Margaret of Prussia, the Duchess of Connaught
Francis, Duke of Teck and Princess Mary Adelaide of Cambridge, the Duchess of Teck
Charles Spencer-Churchill, 9th Duke of Marlborough and Consuelo Vanderbilt, the Duchess of Marlborough
Archibald Primrose, 5th Earl of Rosebery, the former Prime Minister of the United Kingdom
Lady Randolph Spencer-Churchill, the mother of Winston Churchill, attended in byzantine costume as the Empress Theodora
Sir Henry Irving, the actor
Arthur James Balfour
Daisy Greville, Countess of Warwick, the wife of Francis Greville, 5th Earl of Warwick, dressed as Marie Antoinette.
Charlotte Spencer, Countess Spencer, the wife of John Spencer, 5th Earl Spencer, dressed as Margaret Douglas, Countess of Lennox, the mother of Henry Stuart, Lord Darnley.
Arnold Morley
Henry Innes-Ker, 8th Duke of Roxburghe
Lord Basil Blackwood
Prince Victor Duleep Singh, the son of Maharajah Duleep Singh, also attended the Ball.
Ernest Cassel
Alfred Beit
Rupert Guinness, 2nd Earl of Iveagh
Nathan Rothschild, 1st Baron Rothschild
John Hay, the U.S. Ambassador to the United Kingdom
Henry White, as Henri de Lorraine, Duc de Guise, and his wife, Margaret Stuyvesant Rutherfurd, as Morosina Morosini
General Blue and Miss Sanger, guests from the United States Embassy, wore 18th-century velvet court dress.
The Duchess of Newcastle dressed as Princess Dashkova
Prince Charles of Denmark and Princess Charles of Denmark and Princess Victoria, who dressed as Ladies of the Court of Marguerite de Valois
The Duchess of Rutland as Mary Isabella, Duchess of Rutland after Cosway.
Lady Lister-Kaye, the sister of the Duchess of Manchester and the wife of Sir John Pepys Lister-Kaye, 3rd Baronet as the Duchesse de Guise in the time of Henry III.
Thomas Lister, 4th Baron Ribblesdale and Lady Ribblesdale.
Roundell Palmer, 1st Earl of Selborne and Lady Selborne.
The Marchioness of Londonderry, wife of Charles Vane-Tempest-Stewart, 6th Marquess of Londonderry, dressed as Maria Theresa of Austria.