1797) Karl Alexander, 11 September 1760, 19 February 1761 Karl Egon Maria, 5 June 1762, 20 February 1771 Karl Joachim Aloys Franz de Paula, fourth Fürst zu Furstenberg, 31 March 1771 17 May 1804. Josepha Johanna Benedikta, 14 November 1756 2 October 1809; married at Donaueschingen 1779 to landgrave Philipp Nerius Maria zu Fürstenberg, oldest surviving son of her uncle, Karl Borromäus Egon Maria Anna Josepha, 5 April 175926 June 1759 Third prince The death in infancy of the eldest son of the second prince placed Joseph Maria Benedikt Karl in the line of direct inheritance as the second son of Joseph Wenzel Johann Nepomuk. He married in Hechingen 1778 to the Princess Maria Antonia von Hohenzollern-Hechingen (10 November 1760 25 July 1797). He died at Donaueschingen on 24 June 1796 without issue. The title passed to the next eldest sons of the second prince. Both of those boys, Karl Alexander and Karl Egon Marie had died in infancy and childhood, respectively (1761 and 1771). Fourth prince Karl Joachim Aloys Franz de Paula, became the fourth Fürst zu Fürstenberg, He married in 1796 the Landgravina Karoline Sophie zu Fürstenberg (20 August 1777, 25 February 1846). Their shared ancestor was Prosper Ferdinand, Count Fürstenberg, who had been killed at Landau in 1704. Karl Joachim Aloys died in 1803 without issue. There were no more surviving males of the first prince's eldest son. The title passed to the line of the second son. Title moves to cadet (junior) branch Karl Borromäus Egon, the second son of the first prince, died in 1788. He had married in 1750 countess Maria Josepha von Sternberg (1735 1803). They had three sons: Joseph Maria Wenzel (17541759) died in childhood. Philipp Nerius Maria 21 October 1755 5 June 1790; married in 1779 at Donaueschingen to Josepha Johanna Benedikta von Fürstenberg (14 November 1756 2 October 1809). They had one son and two daughters. The son, Karl Gabriel Maria Joseph, born on 2 February 1785, died in Prague on 13 December 1799. Karl Aloys zu Fürstenberg, born 26 June 1760. Karl Aloys zu Fürstenberg married his cousin Princess Elisabetha Alexandrina von Thurn und Taxis (30 November 1767 21 July 1822) in Prague. They had five children: Karl Egon, succeeded his cousin as fifth Fürst zu Fürstenberg 17.5.1804, died on 22 October 1854. Married in Karlsruhe 19 April 1818 Amalie of Baden (1795 1869) Marie Leopoldine, born in Prague,