The Duke of Hamilton and Brandon is one of only five British peers to hold more than one dukedom, the others being:
the Prince of Wales (who is Duke of Cornwall and Rothesay);
the Duke of Buccleuch and Queensberry;
the Duke of Argyll (who holds two Dukedoms of Argyll); and
the Duke of Richmond, Lennox and Gordon (who alone holds three dukedoms).

Historically, several other peers have held multiple dukedoms, including the Duke of Newcastle upon Tyne and Newcastle-under-Lyne, the Duke of Argyll and Greenwich, the Duke of Monmouth and Buccleuch and the two Dukes of Queensberry and Dover and some other mainly Royal Dukes.
The Duke of Hamilton and Brandon is one of only five British peers to hold more than one dukedom, the others being:
the Prince of Wales (who is Duke of Cornwall and Rothesay);
the Duke of Buccleuch and Queensberry;
the Duke of Argyll (who holds two Dukedoms of Argyll); and
the Duke of Richmond, Lennox and Gordon (who alone holds three dukedoms).
Historically, several other peers have held multiple dukedoms, including the Duke of Newcastle upon Tyne and Newcastle-under-Lyne, the Duke of Argyll and Greenwich, the Duke of Monmouth and Buccleuch and the two Dukes of Queensberry and Dover and some other mainly Royal Dukes.
Duke of Hamilton