Francis George Blackwood, 10th Baron Dufferin and Claneboye (20 May 1916 – 13 November 1991), known as Sir Francis Blackwood, 7th Baronet from 1979 until 1988, was a British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 baronet

Baronet

A baronet or the rare female equivalent, a baronetess , is the holder of a hereditary baronetcy awarded by the British Crown...

 and a peer

Peerage

The Peerage is a legal system of largely hereditary titles in the United Kingdom, which constitute the ranks of British nobility and is part of the British honours system...

 in the Peerage of Ireland

Peerage of Ireland

The Peerage of Ireland is the term used for those titles of nobility created by the English and later British monarchs of Ireland in their capacity as Lord or King of Ireland. The creation of such titles came to an end in the 19th century. The ranks of the Irish peerage are Duke, Marquess, Earl,...

.

After the extinction of the male line of the fourth Baron Dufferin and Claneboye

Price Blackwood, 4th Baron Dufferin and Clandeboye

Price Blackwood, 4th Baron Dufferin and Claneboye was the third and eldest surviving son of Hans Blackwood, 3rd Baron Dufferin and Claneboye....

 (and the entirety of the Marquessate of Dufferin and Ava

Baron Dufferin and Claneboye

Baron Dufferin and Claneboye, of Ballyleidy and Killyleagh in County Down, is a title in the Peerage of Ireland. It was created 31 July 1800 for Dorcas, Lady Blackwood. She was the widow of Sir John Blackwood, 2nd Baronet, Member of the Irish Parliament for Killyleagh and Bangor...

), the Barony of Dufferin and Claneboye reverted to the male line of the youngest son of the first Baroness, namely the Blackwood Baronets of the Navy.