 Complete the following phrase:  Born the son of Admiral Sir George Elliot, Elloit was commissioned as a cavalry officer on 22 February 1843. He was promoted to cornet in the 9th Queens Royal Lancers on 18 July 1848 and to lieutet in the 5th Dragoon Guards on 14 June 1850. He served as aide-de-camp to General Sir James Scarlett, Commander of the Heavy Brigade, at the 