John Maurice, Prince of Nassau-Siegen

John Maurice of Nassau (Dutch: Johan Maurits van Nassau-Siegen [ˈjoːɦɑ ˈmʌurɪts fɑ ˈnɑsʌu ˈsiɣə(n)]; German: Johann Moritz von Nassau-Siegen; Portuguese: João Maurício de Nassau-Siegen; French: Jean-Maurice de Nassau-Siegen; 17 June 1604 – 20 December 1679), called "the Brazilian" for his fruitful period as governor of Dutch Brazil, was Count and (from 1664) Prince of Nassau-Siegen. He served as Herrenmeister (equivalent to Grand Master) of the Order of Saint John (Bailiwick of Brandenburg) from 1652 until his death in 1679.

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