Until the birth of Prince PERSON@1 , son of Prince PERSON@2 , on September NUMBER@1 , NUMBER@2 , there was a potential succession problem , since PERSON@3 was the only male child to be born into the imperial family since NUMBER@3 .

Until the birth of a son to Prince PERSON@2 on September NUMBER@1 , NUMBER@2 , there was a potential succession problem . No male child had been born into the imperial family since PERSON@3 in NUMBER@3 .
