Conrad Fulke Thomond O'Brien-ffrench, 2nd Marquis de Castelthomond was a distinguished British Secret Intelligence officer, captain in the Tipperary Rangers of the Royal Irish Regiment and 16th The Queen's Lancers in World War I, and Mountie for the Royal North-West Mounted Police. He was an accomplished artist, linguist, mountaineer, skier and author.
- Occupation
- military personnel
- Born
- November 19, 1893
- Died
- October 23, 1986
