Samuel Pepys, FRS (23 February 1633 - 26 May 1703) was an English naval administrator and Member of Parliament, who is now most famous for his diary. Although Pepys had no maritime experience, he rose by patronage, hard work and his talent for administration, to be the Chief Secretary to the Admiralty under King James II. His influence and reforms at the Admiralty were important in the early professionalization of the Royal Navy.