sentences:  A royal marriage would strengthen Zápolya position in any future succession disputes and would help keep Hungary out of the hands of the Habsburgs.It seems the plan was developed around 1510 by Jan Łaski, Grand Chancellor of the Crown, and Krzysztof Szydłowiecki, Marshal of the Court.Before deciding on Barbara, Sigismund also considered Catherine of Mecklenburg, but that plan was interrupted by renewed hostilities between Poland and Bogdan III the One-Eyed, Voivode of Moldavia.