Background
The second son of the 3rd Baron Rossmore and Josephine Julia Helen (née Lloyd), he was educated at Rugby.
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Derrick Warner William Westenra
Edit Profilepolitician Member of the House of Lords
Education
Rugby School.
Career
Derrick Westenra until 1874, was an Anglo-Irish noble, soldier and author Commissioned a lieutenant in the Monaghan Militia, he resigned effective 4 December 1872, when he was made a sub-lieutenant in the 9th Lancers, replacing the controversial Sub-Lieutenant Tribe. He resigned his commission on 23 October 1875.
Rossmore was appointed Honorary Colonel of the 5th Battalion, Royal Irish Fusiliers (formerly the Monaghan Militia) on 29 July 1896.
On 18 June 1897, he was appointed Lord Lieutenant of Monaghan, succeeding the late Earl of Dartrey, and held the office until his death. He wrote the book Things I Can Tell, published 1912.
He was one of the first polo players in England, where he played in Richmond Park in London. Children:
Honorary Dame Mary Bailey (1 December 1890 – 29 July 1960)
William Westenra, 6th Baron Rossmore (12 July 1892 – 17 October 1958)
Honorary
Richard Westenra (15 October 1893 – 26 July 1944).
