Jean Deutz

Jean Deutz (November 29, 1618 in Amsterdam, † August 1673 ibid) was a Dutch merchant, banker and financier of his brother-in-law Grand pensionary Johan de Witt. Biography Family Jean Deutz came from the Deutz family, which moved from Cologne to Amsterdam in the early 17th century. His parents were Johan Deutz (1581 in Cologne–1638 in Amsterdam), merchant of goods from East India, and Elisabeth Coymans (1595–1653). Jean originally worked as a wool and silk merchant. In 1654 Jean Deutz married Geertruid Bicker (1634–1702), daughter of Jan Bicker and Agneta de Graeff van Polsbroek. He also invited the young Grand pensionary Johan de Witt and introduced him to his sister-in-law Wendela Bicker. Wendela and Johan married the following year. This double marriage brought Deutz the relationship to the most important Republican circles in Holland, the Bicker, De Graeff and De Witt families. In addition to De Witt, his brothers-in-law included arms dealer Jacob Trip, politician Pieter de Graeff and high civil servant Gerard Bicker (I) van Swieten.