skos:altLabel | - John Campbell
- Loudon
- Loudoun
- Earl of Loudoun
- The Earl of Loudoun
- Earl of Loudon
- Lord Loudoun
- Lord Campbell of Loudoun
- 1st Earl of Loudoun
- John Campbell, 2nd Lord Campbell of Loudoun
- John Campbell, Lord Chancellor of Scotland
- John, 1st Earl of Loudoun
- The 1st Earl of Loudoun
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