como Fernando ("It's one and the same, Isabella the same as Ferdinand").

Their emblems or heraldic devices, seen at the bottom of the coat of arms, were a yoke yugo and a sheaf of arrows haz de flechas. Y and F are the initials of Ysabel (spelling at the time) and Fernando. A double yoke is worn by a team of oxen, emphasizing the couple's cooperation. Isabella's emblem of arrows showed the armed power of the crown, "a warning to Castilians not acknowledging the reach of royal authority or that