Fonmon Castle

Fonmon is one of the few medieval castles which is still lived in as a home. It was built by the St. John family in the early 13th century and has changed hands only once. Although most of the present castle dates from the post-medieval period, the rectangular keep was built c.1200 and is still the core of the castle. One of Fonmon's surviving towers may also be medieval in date. In later centuries the castle was enlarged by adding wings to the medieval keep.

The St John's eventually moved to Bletsoe in Bedfordshire while a cadet branch of the family moved to Highlight in Glamorgan. In 1656, during the English Civil War Fonmon was sold to Colonel Philip Jones, a direct ancestor of Sir Brook Boothby, the present owner.

• Fonmon Castle