The title Baron Berkeley has been created twice in the Peerage of England, both times by writ. It was first granted to Sir Thomas de Berkeley in 1295, but the title of that creation became extinct at the death of the fifth Baron, when no heirs to the barony remained. The next creation was in 1421, for James Berkeley. His successor William was granted a Marquessate, which became extinct at his death. The barony, however, passed in a different line. The ninth Baron was created Earl of Berkeley, and the earldom and barony remained united until the death of of the sixth Earl. Then, the earldom passed to a male heir, but the barony passed to a female one, Louisa Milman. At Louisa's death, the barony went to Eva Mary Foley, upon whose death the barony fell into abeyance. The abeyance was terminated a few years later in favour of Mary Lalle Foley-Berkeley. Upon her death, the barony went to Anthony Gueterbock, who is the present holder. In 2000, he was created Baron Gueterbock for life in the Peerage of the United Kingdom.
Barons Berkeley, First Creation (1295)
- Thomas de Berkeley, 1st Baron Berkeley (1245-1321)
- Maurice de Berkeley, 2nd Baron Berkeley (d. 1326)
- Thomas de Berkeley, 3rd Baron Berkeley (1293-1361
- Maurice de Berkeley, 4th Baron Berkeley (1330-1368)
- Thomas de Berkeley, 5th Baron Berkeley (1353-1417)
Barons Berkeley, Second Creation (1421)
- James Berkeley, 1st Baron Berkeley (c. 1394-1463)
- William Berkeley, 1st Marquess of Berkeley, 2nd Baron Berkeley (1426-1492)
- Maruice Berkeley, 3rd Baron Berkeley (1436-1506)
- Maurice Berkeley, 4th Baron Berkeley (1467-1523)
- Thomas Berkeley, 5th Baron Berkeley (1472-1533)
- Thomas Berkeley, 6th Baron Berkeley (1505-1534)
- Henry Berkeley, 7th Baron Berkeley (1534-1613)
- George Berkeley, 8th Baron Berkeley (1601-1658)
- George Berkeley, 1st Earl of Berkeley, 9th Baron Berkeley (1698-1679)
- Charles Berkeley, 2nd Earl of Berkeley, 10th Baron Berkeley (1649-1710)
- James Berkeley, 3rd Earl of Berkeley, 11th Baron Berkeley
- Augustus Berkeley, 4th Earl of Berkeley, 12th Baron Berkeley (1716-1755)
- Frederick Augustus Berkeley, 5th Earl of Berkeley, 13th Baron Berkeley (1745-1810)
- Thomas Moreton Fitzhardinge Berkeley, 6th Earl of Berkeley, 14th Baron Berkeley
- Louisa Mary Milman, 15th Baroness Berkeley (1840-1899)
- Eva Mary Foley, 16th Baroness Berkeley (1875-1964) (abeyant 1964)
- Mary Lalle Foley-Berkeley, 17th Baroness Berkeley (1905-1992) (abeyance terminated 1967)
- Anthony Fitzhardinge Gueterbock, 18th Baron Berkeley (b. 1939)
