Maria's childhood betrothal to Dom Miguel was broken so that a more pliant husband could be found to beget a new Portuguese dynasty, one whose loyalty might prove more trustworthy if he had no other prospects, such that he would be entirely beholden for his dynastic fortune to Portugal's constitutional regime. The Queen obligingly settled on Auguste de Beauharnais who, once again, proved unthreatening to the Great Powers because of his lack of membership in an already reigning dynasty and lack of conflicting foreign obligations or ambitions. He was also the eldest brother of Maria's stepmother Empress Amélie, her late father's second wife.