Bay Middleton

He joined the Lord Lieutenant's staff as an aide-de-camp in 1870, where he was based at the Viceregal Lodge in Dublin, was promoted to captain and left services.

The Empress Elisabeth of Austria ("Sisi") visited England, arriving on 2 August 1874, where she met the Earl Spencer and his equerry Middleton.

[3][4] Captain William George Middleton died at age 45 in the Midland Sportsman's Cup at Lord Willoughby de Broke's estate at Kineton, killed in a fall from his horse at the Parliamentary steeplechase.

Earl Spencer, Lord and Lady Willoughby de Broke, Sir Saville Crossley, M.P., Mr. Albert Pell, Captain William Cossley Atherton, Mr. Charles.

Middleton is portrayed by Colin Morgan in the 2022 historical drama film Corsage written and directed by Marie Kreutzer.