Henry Petty-Fitzmaurice, 6th Marquess of Lansdowne

Lieutenant-Colonel Henry William Edmund Petty-Fitzmaurice, 6th Marquess of Lansdowne DSO MVO (14 January 1872 – 5 March 1936), styled Earl of Kerry until 1927, was a British soldier and politician.

Lansdowne was the son of Henry Petty-FitzMaurice, 5th Marquess of Lansdowne and his wife, Maud.

Lansdowne was originally commissioned into a volunteer battalion of the Oxfordshire Light Infantry, but transferred to the (regular) Grenadier Guards in 1895 and the Irish Guards on its formation in 1900, resigning in 1906 with the rank of Major. He was awarded the Distinguished Service Order (DSO) in 1900 for his service in the Boer War. He returned to the Army during the First World War, reaching the rank of Lieutenant-Colonel.

Lansdowne was Liberal Unionist Member of Parliament (MP) for West Derbyshire from 1908–18. He was a member of the Senate of the Irish Free State from 1922 to 1929, to which he was nominated by the executive council. He succeeded his father as Marquess of Lansdowne in 1927, with a seat in the British House of Lords, meaning that he had the unusual distinction of serving in the national legislatures of two different countries at the same time.

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