Upon their journey through Sweden, they were accompanied by her sister Cecilia and the brother of Edzard, John of Osfriesland.[1] While staying in Vadstena on the way, a great scandal erupted when John was discovered in Cecilia's chamber without his trousers.[2] The scandal became famous under the name Vadstenabullret (The Vadstena Thunder).[2] John were imprisoned and Catherine and Edzard placed under guard in Västerås Castle.