Lieutenant-General John Campbell, 1st Marquess of Breadalbane, FRS, known as John Campbell until 1782 and as The Earl of Breadalbane and Holland between 1782 and 1831, was a British military officer and landowner.
- Occupation
- military leader, politician
- Position held
- member of the House of Lords
- Citizenship
- United Kingdom of Great Britain and Ireland, Kingdom of Great Britain
- Born
- March 30, 1762
- Died
