Cardinal Mendoza , usually part of Queen Isabella 's retinue , had overseen the final negotiations , and by 2 February 1476 the queen could visit the fortress .
This act made his father switch sides to Isabella .
Cardinal Mendoza , usually part of Isabella   's retinue , had overseen the final negotiations , and by 2 February 1476 the queen could visit the fortress .
This act made his father switch sides to Isabella .