Historian Fox offers this first dual biography of the daughters of Spain's Ferdinand and Isabella whose entwined royal relationships helped define the 15th- and 16th-century European political landscape.

Originally published in Great Britain by Weidenfeld & Nicolson, 2011.

Isabella's daughters. A triumph of faith ; Royal sibling ; Of weddings and funerals ; "Our illustrious children" ; Face to face -- Wives. Wedding pageantry ; The estate of matrimony ; Marital harmony ; Death of a prince ; To be a wife ; "The greatest affliction" ; "A happiness rare" -- Widows. A sea of troubles ; The art of politics ; A knife's edge ; The triumph of hope -- Sister queens. To be a queen ; Motherhood ; A taste of power ; Happy families ; The twisting path -- The sky darkens. The man of the moment ; Fool's gold ; Family first and last ; The landscape changes -- Adversity. "A blind, detestable and wretched passion" ; Crusader queen ; Taking a stand ; Dangerous times ; "Mine eyes desire you" ; The final release ; The sisters' legacy.