Devonshire House Ball of 1897 participant Thomas Lister, 4th Baron Ribblesdale
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.