Philippa Gregory and Rebecca Ferguson
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Philippa Gregory on new period drama The White Queen

A tale of three extraordinary 15th Century women caught up in a fight for the throne is the story of a new BBC historical drama The White Queen.

Set in 1464, one of the most turbulent periods in British history, the production is an adaptation of author Philippa Gregory's best-selling historical novel series, The Cousins' War.

Actress Rebecca Ferguson spoke to BBC Breakfast about playing the heroine of the drama, Elizabeth Woodville, and doing a "chemistry test" with her leading man.

The White Queen begins on BBC One on Sunday 16 June.