Elizabeth and Mary - Cousins, Rivals, Queens

United in blood, divided by ambition. They were powerful women in a world that favoured men. They were cousins. And they were rivals for the same throne: one of them had to die. History knows them as Elizabeth I - Virgin Queen, Gloriana - and Mary Queen of Scots - seducer, conspirator and martyr. But behind these masks were real women full of intelligence, passion and ambition...