By 1568, Juan III of Aragon was at a crossroads in his life. At 59, he was getting older, possibly separated from his wife, and his brood of grandchildren was growing quickly. The birth of three this year was greeted happily, but it was a marker that it was time to slow down. The Prince of Girona would thus begin to take on some of the responsibilities of the crown, and by 1570 Juan had began discussions about properly abdicating from the throne in the near future.
These discussions would come to nothing, and in January of 1572, the King of Aragon died a quiet death, in the church his illegitimate daughter was Abbess at. He had been visiting Catalina Beatrice, during a rare time of quiet, and had slipped away during the night. No one had expected it so soon, but the King was dead, so long like King Luis I of Aragon. The body of Juan III of Aragon was carried back to Zaragoza, where he was laid to rest, next to Isabella of Poland and Ferdinand, Prince of Girona, or where his and his brother’s graves would have been, had their bodies been able to be brought back from sea.
Thus, the new King, Luis I of Aragon, rose to the throne, bringing with him his wife, Katherine Zápolya, and a new Prince of Girona. Luis was a man of less action than his father, and in his first major decision as King, he extended a peace offering to the King of Castile, in the form of a betrothal between the Prince of Girona and the youngest daughter of the King of Castile, Juana of Castile. It wasn’t a full reconciliation with the Hapsburgs, but it was a start to better relations between the two dynasties.
That did not mean support for the Zápolya Kings of Eastern Hungary was ended, and in 1575, the King of Aragon again showed his faith in John II Sigismund Zápolya to take the rest of Hungary, by betrothing his eldest daughter to Zápolya’s son by Sophia Báthory, and his second born son to Zápolya’s only daughter, Barbara Zápolya. Granted, the Princess Barbara would die in 1579, but the intentions were there.
The marriage of Ferdinand, Duke of Girona and Juana of Castile would have been a success, if the Prince had not begun a fascination with a young Hungarian woman, Elizabeth Báthory, who had travelled to Zaragoza to join his mother’s ladies in waiting. The young man was sure of his love, and in 1579, a year prior to his wedding, he demanded that he be allowed to marry the Hungarian noblewoman, despite the fact she was considered unsuitable. In an effort to have the Prince listen to reason, the wedding was moved forward by 6 months, and in January of 1580, the Prince of Girona married the daughter of Castile, and all was considered settled. It was not, and Philip II of Castile would receive regular letters from his daughter, complaining the Prince was unkind and neglectful.