 During the event, Ebba was present in Uppsala with her sister-in-law in Uppsala and placed in house arrest to prevent them from interfering.Ebba was held "in high regard and respect" by the brothers of the King, the future John III of Sweden and Charles IX of Sweden, and a personal friend of John's spouse Catherine Jagellon.She and her spouse participated in convincing the royal brothers to rebel against the King, financed by sister-in-law Martha Leijonhufvud, resulting in Erik XIV being replaced by John III in 1568.