BBC One’s ten-part adaptation of Phillipa Gregory‘s historical novel series, The Cousin’s War, began earlier this month.

Discussing the casting process, Ferguson recalled: “It was an absolute emotional rollercoaster. It was my first casting in London, and I was sent straight into a chemistry test with Max Irons. I walked in with all my nerves but we just clicked and it was amazing chemistry between us straight away – which helped to get rid of half the fear.”

Teasing what lies ahead in the series, the Swedish actress hinted: “The White Queen is telling a love story that turns into a political thriller and what we see in Elizabeth at the beginning is the naivety of a young woman which does change through the series as she falls in love with a boy, who happens to be the King of England. We then follow her and the choices she has to make to remain loyal to her children, family and husband.”

Set against the iconic backdrop of the War of the Roses, The White Queen tells the story of the women caught up in the on-going conflict for the throne – they are some of the most ruthless players in history and will stop at nothing to support their own causes and those of the ones they love.

The White Queen is airing at 9pm on Sunday nights on BBC One.

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