monarch predecessor successor birth_name nationality seat parents birth_date order term_start spouse article_title term_end name
elizabeth ii of the united kingdom sir piers bengough john weatherby peregrine andrew morny cavendish british chatsworth house andrew -rrb- deborah cavendish , duchess of devonshire -lrb- mother -rrb- cavendish , 11th duke of devonshire -lrb- father 27 april 1944 her majesty 's representative at ascot 1997 amanda cavendish , duchess of devonshire stoker cavendish , 12th duke of devonshire
 2011 the duke of devonshire
stoker cavendish , 12th duke of devonshire

peregrine andrew morny cavendish , 12th duke of devonshire -lrb- called `` stoker , '' born 27 april 1944 -rrb- 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 # 800 million .
