Jean Plaidy 
Scarlet Cloak 

A vivid novel of Spain, England and France during the tumultuous years of the Inquisition.With fanatical Philip II on the Spanish throne and the spectre of his Inquisition hovering over Europe, these are dangerous and bloody times in which to live. As His Most Catholic Majesty turns his eyes towards the heretical English, two brothers from sleepy Andalusia suddenly find themselves caught in a perilous web of intrigue. In the fight against tyranny, Blasco and Domingo will have to draw upon every ounce of courage and ingenuity they possess just to keep themselves, and the protestant women they love, from danger …