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 == Ballroom differences and some other informaion == 

 There is some debate about where the Ballroom was. I have not detailed all the arguments, but thy are available in the source William Augustus Fraser's source as the weight of opinion is with him. One person who disputed the exact position of the ballroom was the Duchess's daughter, Georgiana, who became Lady de Ros: 

  

 In his book Fraser expands on the differences and fairly convincingly shows that the the differences between the two versions can be reconciled. 

 Here is another version: 

 A great deal of nonsense has 
 been written about the ball, and probably the exact truth will never 
 be known. For instance, the late Sir William Fraser, who wrote a 
 pamphlet (now very rare) on the battle, declares that the ball-room 
 was on the first-floor, and that the Duke of Richmond's house stood in 
 the Rue de la Blanchisserie. The site is now covered by the large 
 Hospital of the Nursing Sisters of the Order of St Augustine, while the 
 The Duchess of Richmond and the  
 room itself is used as the granary of a brewery. The ball-room, which 
 was in existence in 1888, was 120 feet long by 34 feet broad and 13 
 feet high, and was capable of holding 400 people. On the other hand, 
 the Duchess's daughter, Georgiana, who became Lady de Ros, and 
 who died in 1891, at the age of 96, gives a different version in the 
 charming reminiscences which were published in Murray's Magazine. 

 ... 

 Lady Georgiana says in her reminiscences that the historic ballroom 
 was on the ground floor, and it was lent to the Duke by a coachbuilder. 
 The Duke's house, she says, was really No. 9 Rue de Cendres, 
 Boulevard Botanique, near the Porte de Cologne. On this point she is 
 quite explicit  

  
 Lady de Ros says there were 175 invitations. Sir William Fraser says 
 there were 200 guests and 50 ladies. Among those present were the 
 Prince of Orange, Prince Ferdinand of Orange, the Duke of Brunswick, 
 the Duke of Aremberg, whose eye had been accidentally destroyed by 
 Sir William Gordon, a diplomat, in 1775 ; the Hon. John Gordon 
 (afterwards Admiral) ; and the Hon. Sir Alexander Gordon, who fell 
 in the battle, grandsons of the third Earl of Aberdeen. Among the 
 other guests was Lady Elizabeth Conyngham, who, in 1826 married 
 the father of the present Marquis of Huntly (by whom she had no 
 issue). It is difficult now to say how many of the Duchess's own 
 daughters attended. Tradition, for instance, declares that the younger 
 daughter Louisa, who married Mr. Tighe, and died in Ireland in March, 
 1900, at t