Jörg Brena German musician and singer (1921–2011) Parents Wilhelm Ernst I, Grand Duke of Saxe-Weimar-Eisenach Princess Feodora of Saxe-Meiningen Children Adelheid Cornelie Brena Isobel Magdalene Brena Louise Ariana Brena Siblings Bernhard Friedrich Prinz von Sachsen-Weimar-Eisenach Charles Augustus, Hereditary Grand Duke of Saxe-Weimar-Eisenach Princess Sophie of Saxe-Weimar-Eisenach Partners Gisela Jänisch