Dictionary of National Biography, 1885-1900/Ernest Augustus (1674-1728)
ERNEST AUGUSTUS, Duke of York and Albany (1674–1728), the fifth son of Ernest Augustus, elector of Hanover, by the Princess Sophia, and therefore brother to George I, was born on 17 Sept. 1674. He was trained as a soldier, and served with some distinction under the emperor. Visiting England after the accession of his brother, he was created Duke of York and Albany and Earl of Ulster on 29 June 1716, and was, together with his great-nephew Frederick, afterwards Prince of Wales, elected a knight of the Garter. He returned to Germany, and resided there as Prince Bishop of Osnaburg, which title was conferred on him 2 March 1716, till his death, which took place in 1728. The fact of his existence was scarcely known to the majority of the British nation.
[Noble's Continuation of Granger, iii. 9; Historical Account of George Lewis, king of Great Britain.]