Ferdinand, Prince of Solms-Braunfels

Ferdinand Wilhelm Ernst, 2nd Prince of Solms-Braunfels (8 February 1721 in Braunfels – 2 October 1783, ibid.) was the second Prince of Solms-Braunfels. He was the son of Frederick William, Prince of Solms-Braunfels (1696–1761) by his first wife Princess Magdalena Henrietta of Nassau-Weilburg (1691–1725).

Ferdinand Wilhelm Ernst was born in Braunfels, Solms-Braunfels as the first son and child of Frederick William, Count of Solms-Braunfels and his first wife Princess Magdalena Henrietta of Nassau-Weilburg (1691–1725) daughter of John Ernst, Count of Nassau-Weilburg. On 22 May 1742, Emperor Charles VII raised the House of Solms-Braunfels to the rank of Imperial Prince and so when his father died he succeeded him as the 2nd Prince.

On 24 August 1756 he married in Laubach, Countess Sophie Christine Wilhelmine of Solms-Laubach. first daughter and second child of Christian August, Count of Solms-Laubach and his first wife Princess Elisabeth of Isenburg und Büdingen in Birstein daughter of the first Prince, Wolfgang Ernest I. They had the following children:

• William Christian Carl, 3rd Prince of Solms-Braunfels (1759–1837), married Wild- und Rheingräfin Auguste of Salm-Grumbach and Elisabetha Becker, had issue from both marriages
• Princess Karoline Marie Eleonore of Solms-Braunfels (died within a month of life)
• Prince Ludwig Wilhelm of Solms-Braunfels (died within a month of life)
• Princess Auguste Luise of Solms-Braunfels (1764–1797) married Karl Ludwig, Wild- und Rheingraf zu Salm-Grumbach und Dhaun, whose first wife was Princess Marianne of Leiningen daughter of Carl Friedrich Wilhelm, 1st Prince of Leiningen and parents of her brother William's wife.
• Prince Wilhelm Henrich Kasimir of Solms-Braunfels (1765–1852) unmarried
• Princess Luise Karoline Sophie of Solms-Braunfels (1766–1830) unmarried
• Prince Karl August Wilhelm Friedrich (1768–1829) unmarried
• Prince Frederick William of Solms-Braunfels (1770–1814) married Princess Frederica of Mecklenburg-Strelitz, widow of Prince Louis Charles of Prussia and had issue
• Prince Ludwig Wilhelm Christian of Solms-Braunfels (1771–1833) unmarried
• Princess Ferdinande Wilhelmine Isabelle of Solms-Braunfels (died within a year)