Talk:Your Character (The Royal Romance)/@comment-38034386-20201019133116/@comment-37484301-20201019135636

Because she is "of House Beaumont" he is like her "father" and if his "daughter" (MC) is seen as "unfit", he has the legal right to gain custody of his "granddaughter".

They sponsored her in TRR1. If they hadn't, she wouldn't have been able to complete for the hand of the prince. "Sponsoring" gives her the rights of "nobility" and the title of "lady" which also means she is pledged to their House as if it were blood family.