Charles I, Count Palatine of Zweibrücken-Birkenfeld (1560–1600) Charles I, Duke of Mantua and Montferrat or Charles Gonzaga (1580–1637) Charles I Louis, Elector Palatine (1617–1680) Charles I, Landgrave of Hesse-Kassel (1654–1730) Charles I, Landgrave of Hesse-Philippsthal (1682–1770) Charles I, Duke of Brunswick-Wolfenbüttel (1713 ...