George Louis was the second child and first son of Alexander, Prince of Erbach-Schönberg (1872–1944), and his wife, Princess Elisabeth of Waldeck and Pyrmont (1873–1961), daughter of George Victor, Prince of Waldeck and Pyrmont and his wife Princess Helena of Nassau.
He was related with the British, Dutch, and Spanish Royal families. He was a first cousin of: Wilhelmina of the Netherlands (1880–1962), Queen-regnant of the Netherlands. Princess Alice, Countess of Athlone (1883–1981) Charles Edward, Duke of Saxe-Coburg and Gotha (1884–1954), last reigning Duke of Saxe-Coburg and Gotha.
Josias, Hereditary Prince of Waldeck and Pyrmont (1896–1967) 1 January 1903 – 18 August 1903: His Illustrious Highness Count George Louis of Erbach-Schönberg 18 August 1903 – 18 October 1944: His Serene Highness Prince George Louis of Erbach-Schönberg 18 October 1944 – 27 January 1971: His Serene Highness The Prince of Erbach-Schönberg.
Pauline, Princess of Wied (1877–1965), last senior member of the House of Württemberg.
