Her Majesty Victoria 1st / Attended by the Duke of Wellington, the King of the Belgians, Lord Hill [and] Co, [and] departing from Windsor Castle to review the troops. 
Lithograph by W Clerk after J C Wilson, nd.
Published by E Glover, Water Lane, Fleet Street, London, 1837.

Leopold I, King of the Belgians, later arranged for his nephew Prince Albert to marry Victoria.

HER MAJESTY VICTORIA 1ST / ATTENDED BY THE DUKE OF WELLINGTON, THE KING OF THE BELGIANS, LORD HILL [AND] CO, [AND] DEPARTING FROM WINDSOR / CASTLE TO REVIEW THE TROOPS