In May, Sigismund's men started to advance northwards. The army gathered in Marienburg (Malbork), where the Livonian Baltic German Jürgen Farensbach was appointed commander. The army was to be transported from Danzig (Gdańsk) to Sweden on Swedish ships, but the Swedish Estates declined. They refused to lend him ships as long as he stayed with a foreign army. There was widespread suspicion against Sigismund and his Catholic warriors. Thus the Estates promised to protect Duke Charles and the others who rebelled against the King.