 Chivasso capitulated 5 September 1231 and was not returned to Boniface for another year, after the Marquis had admitted his own defeat and come to terms.After a subsequent rupture in his relations with Saluzzo and Savoy, he was prevented for a while from seeing his wife, who had gone on a trip to Piedmont.It was then that Boniface decided to switch loyalties and turned to the imperial camp.