Arthur Annesley, 1st Earl of Anglesey PC was an Anglo-Irish royalist statesman. After short periods as President of the Council of State and Treasurer of the Navy, he served as Lord Privy Seal between 1673 and 1682 for Charles II. He succeeded his father as 2nd Viscount Valentia in 1660, and he was created Earl of Anglesey in 1661.

The Treasurer of the Navy, originally called Treasurer of Marine Causes or Paymaster of the Navy, was a civilian officer of the Royal Navy, one of the principal commissioners of the Navy Board responsible for naval finance from 1524 to 1832. The treasurer was based at the Navy Pay Office.