Lionel Arthur Henry Seymour Dawson-Damer, 6th Earl of Portarlington (26 August 1883 – 4 July 1959) was an Anglo-Irish peer and soldier.
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Early life
Dawson-Damer was born on 26 August 1883. He was the son of George Dawson-Damer, 5th Earl of Portarlington and Emma Andalusia Frere Kennedy. His younger siblings were Lady Aline Dawson-Damer (wife of Lt.-Col. Valentine Vivian), Lady Christian Dawson-Damer (wife of Capt. Hon. Fergus Bowes-Lyon, and Capt. William Frederick Martin), Lt. George Seymour Dawson-Damer (who was killed in action during World War I), Lady Moyra Dawson-Damer (wife of James Brinsley Peter FitzGerald, a grandson of Sir Peter FitzGerald, 19th Knight of Kerry). After his father's death, his mother married Henry Portman, 3rd Viscount Portman in September 1901. From this marriage, he had a younger half-sister, Hon. Selina Luisa Portman.
His paternal grandparents were Lionel Dawson-Damer, 4th Earl of Portarlington and Hon. Harriet Lydia Montagu (eldest daughter and co-heiress of Gen. Henry Montagu, 6th Baron Rokeby). His mother was the only daughter of Lord Nigel Kennedy (a younger son of Archibald Kennedy, Earl of Cassilis and brother to Archibald Kennedy, 2nd Marquess of Ailsa) and Catherine Anne May.




