honorific_prefix caption children birth_name nationality honorific_suffix parents birth_date spouse image article_title seat name
his grace portrait by allan warren , 1997 lady lady melissa van straubenzee lord max percy catherine valentine percy george percy , earl percy ralph george algernon percy british dl hugh percy , duchess of northumberland percy , 10th duke of northumberland elizabeth diana 16 november 1956 jane richard -lrb- m. 1979 -rrb- 12th duke of northumberland allan warren.jpg ralph percy , 12th duke of northumberland
 alnwick castle the duke of northumberland
ralph percy , 12th duke of northumberland

ralph george algernon percy , 12th duke of northumberland -lrb- born 16 november 1956 -rrb- , styled lord ralph percy until 1995 , is an english aristocrat , hereditary peer and largely rural landowner .
