Sir Giffard Thornhurst was a Kent gentleman associated with Agney Court. He married Susan Temple and held the Agney leasehold interest until his death in 1627. His personal baronetcy was created in the Baronetage of England and became extinct with his line.

His holding was a leasehold interest under the Dean and Chapter, not the manor's institutional inheritance.

Research sources:
- Modern account of the Manor of Agney, Kent; Hasted's index records Giffard Thornhurst of Agnes Court; Cambridge University Press, The Jacobite Duchess, chapter on Frances Thornhurst and Agney. — https://www.cambridge.org/core/product/identifier/9781800102040%23C1/type/BOOK_PART
- Wikipedia biographical reference — https://en.wikipedia.org/wiki/Thornhurst_baronets