Jean de Neufville

One of the guests he received in his house, was John Paul Jones, a prominent figure during the Revolutionary War.

De Neufville bought 7326 acres in South Carolina and his son in Albany County, New York.

The draft treaty of 1778, stored in a lead coffin, was thrown overboard by Henry Laurens, a native of South Carolina.

The previously closed secret agreement between American diplomat and Virginian planter William Lee and De Neufville, who were acting on their own name, but approval was given by Engelbert François van Berckel an Amsterdam magistrate, led to the severing of ties between Britain and the Republic, and on December 20 to the Fourth Anglo-Dutch War.

On March 1, 1781 John Adams commissioned the Neufville on behalf of the Congress to open a loan of ƒ 1,000,000.

In April 1783 De Neufville went bankrupt; in the same year he remarried Anna Margaretha Langma(r)k, both domiciled in Neerlangbroek, and settled reportedly in Bonn.