Duke of Westminster

The title of Duke of Westminster was created by Queen Victoria in 1874 and bestowed upon Richard Grosvenor the 3rd Marquess of Westminster.

The baronetcy of the Grosvenor family was created by James I in 1622. Richard Grosvenor the 6th Baronet was created Baron Grosvenor of Eaton in 1761 and in 1784 became both Viscount Belgrave and Earl Grosvenor under George III. The title Marquess of Westminster was bestowed upon Robert Grosvenor the 2nd Earl Grosvenor at the coronation of William IV in 1831.

Baronets (1622)

• Sir Richard Grosvenor, 1st Baronet (1584-1645)
• Sir Richard Grosvenor, 2nd Baronet
• Sir Thomas Grosvenor, 3rd Baronet (1656-1700)
• Sir Richard Grosvenor, 4rd Baronet (1689-1732)
• Sir Thomas Grosvenor, 5th Baronet (1693-1733)
• Sir Robert Grosvenor, 6th Baronet (-1755)
• Sir Richard Grosvenor, 7th Baronet (became Earl Grosvenor in 1784) (1731-1802)

Earls of Grosvenor (1784)

• Sir Richard Grosvenor, 1st Earl Grosvenor, (1731-1802)
• Sir Robert Grosvenor, 2nd Earl Grosvenor (1767-1845) (became Marquess of Westminster in 1831)

Marquesses of Westminster (1831)

• Sir Robert Grosvenor, 1st Marquess of Westminster (1767-1845)
• Sir Richard Grosvenor, 2nd Marquess of Westminster (1795-1869)
• Sir Hugh Lupus Grosvenor, 3rd Marquess of Westminster (became Duke of Westminster in 1874) (1825-1899)

Dukes of Westminster (1874)

• Sir Hugh Lupus Grosvenor, 1st Duke of Westminster (1825-1899)
• Sir Hugh Richard Arthur Grosvenor, 2nd Duke of Westminster (1879-1953)
• Sir William Grosvenor, 3rd Duke of Westminster (1894-1963)
• Sir Gerald Hugh Grosvenor, 4th Duke of Westminster (1907-1967)
• Sir Robert George Grosvenor, 5th Duke of Westminster (1910-1979)
• Sir Gerald Cavendish Grosvenor, 6th Duke of Westminster (1951-)