1736 separated from Bletchley and Simpson, Buckinghamshire
"On St Martin's Day 1724 the first stone was laid of the new parish church of Fenny Stratford, marking a fresh start in the town's history. Browne Willis, a historian of the day, had raised the funds for the reconstruction. The Church was built on the site of the old Chantry Chapel of St. Margaret and St. Catherine at Fenny Stratford. He erected the church as a memorial to his grandfather Dr. Thomas Willis, a famous physician, who lived in St. Martin's Lane in the parish of St. Martin-in-the-Fields in London, who died on St. Martin's day, 11th November 1675.In order to perpetuate his own memory, Browne Willis arranged for a sermon to be preached at St. Martin's Church on each St. Martin's Day, for which a fee was payable. During his lifetime, he also celebrated the occasion with a dinner attended by local clergy and gentry,an event which has continued to the present day": Wikipedia