Ernst August Duke of Cumberland was born on 21 September 1845 in Hannover, Germany. He was married to Prinsesse Thyra. He died on 14 November 1923 in Gmunden, Germany.
Father of Princess Marie Louise (1879-1948), Prince George William (1880-1912), Princess Alexandra (1882-1963), Princess Olga (1884-1958), Prince Christian (1885-1901) and Prince Ernest Augustus of Hannover and Cumberland (1887-1953).