 He also persuaded Sigismund to order the execution of Gálffy on 8March 1593.That summer, Sigismund went to Kraków in disguise to start negotiations regarding his marriage with Anna, the sister of SigismundIII of Poland.The Holy See had proposed the marriage, which could have enabled Sigismund to rule Poland during the absence of the king, who was also King of Sweden, but the plan came to nothing.