Lieutenant David Michael Mountbatten, 3rd Marquess of Milford Haven, was a British peer and naval officer. Styled Viscount Alderney before 1921 and Earl of Medina between 1921 and 1938, he succeeded his father as Marquess in 1938 and served in the Royal Navy during the Second World War.
- Occupation
- naval officer
- Citizenship
- United Kingdom, United Kingdom of Great Britain and Ireland
- Born
- May 12, 1919
- Died
- April 14, 1970