Delighted with this mission, she fulfilled it conscientiously, but Henry showed no gratitude upon his return, according to her "Memoirs". He had suspicions of a secret romance between Margot and Henry of Guise and their presumptive plan of marriage. When the royal family found this out, Catherine and Charles beat her and sent Henry of Guise away from court. This episode is perhaps at the root of a "lasting brotherly hatred" between Margaret and her brother Henry, as well as the equally lasting cooling of relations with her mother.