 Promoted to full admiral on 8 April 1868, he retired in February 1873 and was advanced to Knight Grand Cross of the Order of the Bath on 24 May 1873.He was promoted to Admiral of the Fleet on 27 December 1877 and died at his home, Thirlestane Castle in Berwickshire on 1 September 1878.On 7 February 1828, Maitland married Amelia Young at Rio de Janeiro (whilst posted in South America) and they had one son, Thomas Mordaunt (1838–1844), and three daughters, Isabel Anne (d. 1854), Lady Alice Charlotte (d. 1883) and Lady Mary Jane (1847–1918).