 Through skilful negotiations, the Queen managed to take control of the main strongholds of Seville occupied by the Marquis and the Duke and, instead of returning them to their legitimate owners, named others as their heads.She prohibited both nobles from entering the city of Seville, under the pretext that their simultaneous presence there would risk violent conflicts.In this way the Duke's political dominance over Seville disappeared, and the city passed into the control of the Crown.