Frederick's move was perfectly successful. Otto rushed back to Germany, and the death of his wife Beatrice did away with any obligations of loyalty which the partisans of the Hohenstaufen might have felt towards him. Frederick was elected and crowned (December, 1212), and renewed the old Hohenstaufen league with France. Otto turned for help to his uncle, John of England. John was excommunicate, but now made his peace with the Pope. Philip, at first encouraged by Innocent to attack England and then after John's submission forbidden to go, turned his arms against Flanders. A coalition was formed against him, and was joined by John and by Otto; but Philip's victory at Bouvines (July, 1214) broke up the coalition and put an end to Otto's hopes. For the four years of life which remained to him his power was confined to Brunswick. [Sidenote: Frederick's acceptance.] Meanwhile Frederick had, as it were, put the crown upon his work of submission to the Papacy. By the Golden Bull (July, 1213), he repeated the promises which Otto had made at Neuss in 1201 with the additions of 1209. In 1215 he went through a second and more formal coronation at Aachen, and took the cross in conjunction with a number of German nobles. In 1216 he further promised, in a formal deed, that in return for the imperial crown his son Henry should become King of Sicily, entirely independently from himself and under the supremacy of the Roman Church. Thus Frederick in his eagerness put himself completely in the hands of the Papacy. [Sidenote: Innocent and England.]