Windsor , England ( CNN ) -- Four portraits of Queen Elizabeth II by pop artist Andy Warhol have gone on display at her home , Windsor Castle , for the first time as part of an exhibition of official images of the monarch marking the end of her Diamond Jubilee year . Warhol 's series of sparkling `` diamond-dusted '' portraits of the Queen was acquired earlier this year to mark the Diamond Jubilee . Royal Librarian Jane Roberts told CNN they were the `` most iconic '' images in the exhibition , `` The Queen : Portraits of a Monarch , '' which features pictures , paintings and sculptures by some of the world 's best-known artists and photographers . Warhol , who once claimed he wanted to be `` as famous as the Queen of England , '' used a 10-year-old official portrait of Elizabeth II , by royal photographer Peter Grugeon , to create the four screenprints for his `` Reigning Queens '' series in 1985 . `` What Warhol did was he grabbed a pre-existing image of the Queen and wiped it clean , so what you 're left with is the outline , with the tiara , '' Roberts told CNN . `` Then he played around with colors , and lighting , and 'diamond dust ' [ cut glass ] , really treating the likeness as an icon . '' Capturing a Queen : Images of Elizabeth II . Queen Elizabeth 's global significance -- as head of the Commonwealth -- is hinted at by the number of works by international photographers and artists in the exhibition : American Annie Leibovitz , Canadian Yousuf Karsh , Italian Pietro Annigoni and Czech Franta Belsky , among others . So which , of the millions of pictures of the monarch , will be the one which is remembered long after her reign , the defining image of Queen Elizabeth II , who Roberts says is `` probably the most photographed person in the world '' ? With so many to choose from , she says it is hard to be sure . `` I suspect in this age of photography , that it will be a photograph , '' said Roberts . `` Probably one of the incredibly glamorous photographs taken by Cecil Beaton . `` But having said that , it could be one of the photographs taken very early in her reign , between the accession and the coronation , by Dorothy Wilding , because they were then reproduced on coinage and stamps , again and again . '' `` Or it could be the Warhol . Who knows ? '' `` The Queen : Portraits of a Monarch '' is on at Windsor Castle until June 9 , 2013 .
Queen Elizabeth II celebrated her Diamond Jubilee in 2012 . Monarch 's 60th anniversary on throne marked with a series of exhibitions . Jubilee year rounded off with show of official portraits at Windsor Castle . Works by Andy Warhol , Cecil Beaton , Lucian Freud and Annie Leibovitz featured .