Derrick Westenra, 5th Baron Rossmore

Derrick Warner William Westenra, 5th Baron Rossmore of Monaghan (born 7 February 1853, Dublin, County Dublin, Ireland – died 31 January 1921, Rossmore Park, County Monaghan, Ireland) was an Anglo-Irish noble, soldier and author.

The son of Henry Westenra, 3rd Baron Rossmore and Josephine Julia Helen (née Lloyd), he was educated at the Rugby School in Rugby, Warwickshire, England. He gained the rank of Sub-Lieutenant in 1872 in the service of the 9th Lancers. He gained the rank of Sub-Lieutenant in 1874 in the service of the 1st Life Guards.

He succeeded to the title of 5th Baron Rossmore of Monaghan on 28 March 1874. He retired from the military in 1876. He held the rank of Honorary Colonel in the service of the Monaghan Militia. He held the office of Lord-Lieutenant of County Monaghan between 1887 and 1921. He wrote the book Things I Can Tell, published 1912.

Family

He married Mittie Naylor on 14 June 1882 at All Saints' Church, Ennismore Gardens, London, England.

Children:

• Hon. Mary Westenra (born 1 December 1890 – died 29 July 1960)
• William Westenra, 6th Baron Rossmore of Monaghan (born 12 July 1892 – died 17 October 1958)
• Hon. Richard Westenra (born 15 October 1893 – died 26 July 1944)

Citations

• Charles Mosley, editor, Burke's Peerage, Baronetage & Knightage, 107th edition, 3 volumes (Wilmington, Delaware, U.S.A.: Burke's Peerage (Genealogical Books) Ltd, 2003), volume 3, page 3409
• G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume XI, page 183
• Mosley, ibid, volume 1, page 220