Who succeeded Isaac Newton as Master of the Mint after Newton died?

John Conduitt succeeded Isaac Newton as Master of the Mint after Newton died in March 1727. Conduitt had married Newton’s half-niece, Catherine Barton, and was already familiar with the office during Newton’s later years.

Conduitt was a landowner, Whig politician and Member of Parliament for Whitchurch, later representing Southampton. His earlier career included government and military service in Portugal and Gibraltar. By the time he returned to England, he had the wealth and connections to enter national public life.

After Newton’s death, Conduitt took over the Master of the Mint post and also acted as executor of Newton’s estate. He collected material for a biography of Newton, helping preserve information about the scientist’s life and work. His tenure as Master lasted until his own death in 1737.

The tempting alternatives were Newton associates, but none fits the succession. John Flamsteed was the Astronomer Royal, Roger Cotes was a mathematician, and Edmond Halley later became Astronomer Royal. The direct officeholder after Newton was Conduitt.