Reckleben, Jan Frederik Christiaan2008-02-192008-02-191853570015http://hdl.handle.net/2263/4553Copper engraving.Copper engraving of Willem Frederik van Nassau-Dietz. Born in 1613, second son of Ernst Casimir. Becomes baron of Nassau Dietz in 1640 after the death of his brother Hendrik Casimir I at the battle of Hulst. He was also the viceroy of Friesland and Groningin. He dies in 1664.340230 bytesimage/jpegUniversity of PretoriaWillem Frederik, Graaf van Nassau-Dietz, 1613-1664.House of Nassau-DietzNetherlands -- History -- Wars of Independence, 1556-1648Netherlands -- History -- 1648-1714Image