5th Baron Dufferin and Claneboye (suc. 1841) 1st Marquess of Dufferin and Ava (cr. 1888)
F2721 with the note - proof from the unfinished plate
He was invested as Knight of the Order of St Patrick in 1864 as 5th Baron Dufferin and Claneboye (suc. 1841) and only became Marques of Dufferin and Ava in 1888. So, this bookplate must be dated after 1864 and before 1888.
He was the son of Price Blackwood, 4th Baron Dufferin and Claneboye (1794-1841) and Helen Selina Sheridan, daughter of Thomas Sheridan and Caroline Henrietta Callander.
He succeeded his father in 1841 as 5th Baron Dufferin and Claneboye in the Peerage of Ireland, and was appointed a Lord-in-Waiting to Queen Victoria in 1849. In 1850 he was created Baron Claneboye, of Clandeboye in the County of Down, in the Peerage of the United Kingdom.
He married Lady Hariot Georgina Rowan-Hamilton in 1862 having taken the name Hamilton by royal license and later the name of Temple.
A distinguished diplomat he was Ambassador to St Petersburg, 1879-81, Ambassador to Constantinople and Cairo, 1881-84, Ambassador to Italy (1888-1891) and to France (1891-1896). He also held the offices of Chancellor of the Duchy of Lancaster, under-Secretary of State for War, Governor-General of Canada and Vice-Roy of India
After returning from France, Lord Dufferin became President of the Royal Geographical Society, and Rector of the University of Edinburgh and the University of St Andrews.
Published: A Yacht Voyage. Letters from High Latitudes; Being Some Account Of A Voyage, In 1856, In The Schooner Yacht "Foam", To Iceland, Jan Mayen, And Spitzbergen. By Lord Dufferin. Governor General Of The Dominion Of Canada. Toronto: Adam, Stevenson, and Co., 1873
See, also the Dufferin Papers