User blog comment:B214/Question and Answers 4/@comment-5.36.157.93-20150201090933/@comment-1359322-20150201093256

Well even if the child isn't Pure-blooded, first of all the Gremory will never discriminate against that child. Plus the Gremory isn't like the Bael where they would discriminate because he's talentless or not pure-blooded etc. Second, with a Maou as his/her uncle, who dares to shun the child. Third, like Jop said, that child is a child of a Hero, plus if Ise reaches Ultimate-class, that child be a a child of an Ultimate-class Devil and Clan Head of the House of Gremory.