Eric XIV of Sweden
In 1561, Renata's mother planned to marry her to king Frederick II of Denmark. However, the outbreak of the Nordic Seven Years' War between Denmark and Sweden in 1563, interrupted these plans. From 1565 to 1567, Christina negotiated with King Eric XIV of Sweden to create an alliance between Sweden and Denmark through his marriage to Renata. The plan was for Christina to conquer Denmark with the support of Sweden, a plan Eric supported.