"Paul Phélypeaux de Pontchartrain (1569 – 21 October 1621), lord of Pontchartrain and Villesavin, was a French statesman. He served both Marie de' Medici and her son Louis XIII during a period of conflict between Catholics and Protestants in France, the French Wars of Religion. He was one of the negotiators of the Treaty of Loudun in 1616." - (en.wikipedia.org 25.05.2021)