the County of Down and in the Province of Burma. These titles were also in the Peerage of the United Kingdom. Lord Dufferin and Ava also assumed by Royal licence the additional surname of Hamilton in 1862 and that of Temple (which was the maiden name of his father's mother) in 1872. His eldest son and heir apparent Archibald Hamilton-Temple-Blackwood, Earl of Ava, was killed at the Siege of Ladysmith during the Second Boer War while serving as a war correspondent. He was unmarried and the Marquess was therefore succeeded by the second son, the second Marquess. On his death, the titles passed to another brother, the third Marquess. He was a soldier and also served as Speaker of the Senate of Northern Ireland. Lord Dufferin and Ava died in an air crash and he was succeeded by his son, the fourth Marquess. He notably held office as Under-Secretary of State for the Colonies in the government of Neville Chamberlain. After his death in the Second World War, the titles were inherited by his six-year-old son, the fifth Marquess, later a well-known patron of arts. He was childless and on his death in 1988 the marquessate, earldoms, viscountcy and barony of Clandeboye (created in 1850) became extinct. His widow, Lindy, Marchioness of Dufferin and Ava lived at the Clandeboye Estate until her death on 26 October 2020. The last Marquess was succeeded in the baronetcy and barony of Dufferin and Claneboye by his distant relative Sir Francis George Blackwood, 7th Baronet, of the Navy (see below), who became the tenth Baron. Since 1991, the titles have been held by the latter's son, the eleventh Baron. Like his father he lives in Australia. The Blackwood Baronetcy, of the Navy, was created in the Baronetage of the United Kingdom in 1814 for the Honourable Henry Blackwood, seventh son of Sir John Blackwood, 2nd Baronet and of Dorcas Blackwood, 1st Baroness Dufferin and Claneboye. He was a Vice-Admiral of the Blue in the Royal Navy and was the bearer of despatches announcing the victory of Trafalgar in 1805. As mentioned above his descendant the seventh Baronet succeeded as tenth Baron Dufferin and Claneboye and eleventh Baronet of Killyleagh in 1988. Holders Blackwood Baronets, of Killyleagh (1763) Sir Robert Blackwood, 1st Baronet (1694–1774) Sir John Blackwood, 2nd Baronet (died 1799) Sir James Stevenson Blackwood, 3rd Baronet (1755–1836) (succeeded as Baron Dufferin and Claneboye in