The title Duke of Lennox has been created several times in the peerage of Scotland, for Clan Stewart of Darnley.

The second duke was made Duke of Richmond; at his death, the dukedom of Richmond became extinct.

The Dukedom of Richmond and one month later that of Lennox were created in 1675 for Charles Lennox, an illegitimate son of Charles II.

Thus, the duke holds four dukedoms (if including Aubigny-sur-Nère), more than any other person in the realm; or (not counting the putative French title) three, equal since 2022 to Prince William, Duke of Cornwall, of Rothesay and of Cambridge.

The heir apparent is Charles Gordon-Lennox (b.