great scandal erupted when John was discovered in Cecilia's chamber without his trousers. The scandal became famous under the name Vadstenabullret (The Vadstena Thunder). The king had been reluctant to let Cecilia follow, as there were at the time negotiations of a marriage between her and Georg John of Palatine Veldenz, and asked for her to return early: he also asked Catherine and Edzard to remain in Sweden for the winter, so he asked Magnus to delay their departure. Several nights in a row, the palace guards observed a man climbing in through the window of Cecilia's bedroom. After this had happened four times a row, they informed her brother Prince Eric, who asked his brother Magnus and his courtiers to advise him. They decided to keep Cecilia's window under guard, so that the man in question could not be in a position to deny the matter if he was caught. When the same thing happened the night of 13–14 December, Eric sent Charles de Mornay with some guards to arrest the man, and when they entered Cecilia's bedroom, they found the brother of the groom, John II of Ostfriesland, in Cecilia's bedroom without any hose (pants) on. Eric had John imprisoned, held interrogations then sent John to the king, who imprisoned him in Örbyhus Castle. The 17 December, Catherine and Edzard were sent to Västerås Castle and placed under house arrest, while Eric and Cecilia were both recalled to Stockholm. Cecilia accused her father of having beaten her and ripped her hair off. The king is said to have cried when he told the story to his wife. He accused Catherine and Erik for not having restrained Cecilia as they should, he had Charles de Mornay arrested and reprimanded Erik for having caused the scandal by his way of handling the whole affair by not having dealt with it in secret but instead exposed it in public. Catherine was allowed to see the king in June 1560: she acted as mediator and tried to issue John's, her own and her consort's release, protested against the confiscation of Cecilia's jewelry and asked the queen, Catherine Stenbock to speak for her, which it seems as the queen did. The mother of John had several foreign powers send ambassadors to Sweden to speak for John's release. Erik suggested that Cecilia and John be forced to marry each other, but the king did