Maurits / Maurice, Prince of Orange (1567-1625) was stadtholder of all provinces within the Dutch Republic except for Friesland. Commonly known as Maurits of Nassau for much of his life due to his Catholic elder half-brother Philip William holding the title of Prince of Orange until his death in 1618, he was the son of the famed William the Silent, and succeeded him as stadtholder after his death. Frederik Hendrik / Frederick Henry (1584-1647) was the ruling Prince of Orange and stadtholder of Holland, Guelders, Overijssel, Utrecht and Zeeland. The youngest son of the famed William the Silent, he was the half-brother of the previous Prince of Orange and his predecessor, Maurice, who passed away in 1625.