麥當奴
Richard Graves MacDonnell was born in Dublin, 8 September 1814, the second son of Richard MacDonnell, the Provost of Trinity College, Dublin, and Jane Graves (1793–1882), second daughter of Richard Graves, Dean of Ardagh. He was a nephew of Robert James Graves and the brother of Major-General Arthur Robert MacDonnell. His first cousins included Lady Valentine Blake of Menlough, Sir William Collis Meredith, Edmund Allen Meredith, John Dawson Mayne and Francis Brinkley. MacDonnell entered Trinity College Dublin in 1830, was elected a scholar in 1833, and graduated B.A. (1835), M.A., (1836), LL.B., (1845), and LL.D.., (1862)