  peregrine andrew morny cavendish, 12th duke of devonshire  (called "stoker,"chatsworth â a statement from the duke born 27 april 1944) is a british peer. he is the only surviving son of andrew cavendish, 11th duke of devonshire and his wife, the former deborah mitford. he succeeded to the dukedom following the death of his father on 3 may 2004. prior to this succession, he was styled marquess of hartington. the duke is worth an estimated Â£800m.http://www.derbytelegraph.co.uk/duke-devonshire-derbyshire-s-richest-man/story-21107316-detail/story.html ==education== he attended eton college and exeter college, oxford, where he read history. ==horse racing== the duke is well known in the world of horse racing and serves as her majesty's representative at ascot and chairman of ascot racecourse ltd. in 1980 he was elected to the jockey club and in 1989 he was appointed its senior steward (that is, chairman). during his five-year term of office, he oversaw a number of changes within the racing industry, in particular the creation of the british horseracing board which is now the governing authority for british racing. he was appointed first chairman of the board in june 1993 and retired at the end of his term in 1996. he was appointed commander of the order of the british empire (cbe) for services to racing in 1997 and knight commander of the royal victorian order (kcvo) in the 2009 new year honours for his services as her majesty's representative at ascot. ==other interests== he was appointed a trustee of the wallace collection in 2007.[http://webarchive.nationalarchives.gov.uk/+/http://www.culture.gov.uk/nr/rdonlyres/c5770892-124b-47b3-99fe-2f5ae60a0035/0/pnwallacecol
1944_births Alumni_of_Exeter_College,_Oxford Cavendish_family Commanders_of_the_Order_of_the_British_Empire Dukes_of_Devonshire Earls_of_Burlington_(1831) Knights_Commander_of_the_Royal_Victorian_Order Living_people People_associated_with_the_University_of_Derby People_educated_at_Eton_College