 The man Honoria sent to Attila with the offer was tortured to reveal all the details of the arrangement and then beheaded.It took a great deal of persuading for Valentinian's mother to get her son to agree to spare his sister's life.In early 451, Attila crossed the Rhine and entered the Belgic provinces, capturing Divodurum Mediomatricum on April 7, 451, Aetius gathered together a coalition of forces, including Visigoths and Burgundians, and raced to prevent Attila from taking the city of Aurelianum, successfully forcing the Huns to beat a hasty retreat.