Final preparations are being made to showcase six historic tapestries by world-famous artist and textile designer William Morris in Birmingham.

The tapestries, which illustrate the story of the search for the Holy Grail, are going on display at Birmingham Museum and Art Gallery for the first time in seven years later this month.

They will be joined in the exhibition, called 'Love is Enough', by Andy Warhol prints brought together from collections in the UK and US.

The trust said the Morris tapestries were extremely rare, fragile and light-sensitive and this was a once in a generation opportunity to see them.

Following this exhibition, which runs from April 25 to September 6, they will need to rest for an extended period of time.

The tapestries, designed by William Morris, Edward Burne-Jones and John Henry Dearle, are the only versions from the Holy Grail series in any public collection.

They tell the story of the search for the Holy Grail by the Knights of the Round Table and were produced by Morris & Co. for three different clients between 1895 and 1900.

The displays will also have works by Andy Warhol including additional drawings and screenprints from Tate and an infamous print of a Campbell's Soup can which is on loan from Wolverhampton Art Gallery.

Unique to this exhibition will be Dante Gabriel Rossetti's unfinished portrait 'La Donna Della Finestra' from 1881, thought to be based on a likeness of Jane Morris, alongside Warhol's iconic portraits of Marilyn Monroe, Joan Collins and Elizabeth Taylor.

Rare archival material from the Andy Warhol Museum in Pittsburgh will also feature including a signed photograph of Shirley Temple posted to a 13-year-old Warhol from the actress in 1941.

Toby Watley, director of collections at Birmingham Museums Trust which runs the gallery, said: "They are historic masterpieces and are sure to be a huge talking point among our visitors. It is wonderful to be able to present members of the public with such fascinating historic artefacts."

Love is Enough is being curated by Turner-Prize winning artist Jeremy Deller.