According to Imperial Family Law, expanded regulation Article No.1 issued by the Emperor February 11, 1907, and Article No. 25 of the regulation of Imperial rank, for the Princes of the descendants of a great-great grandchild of the Imperial Family, if the Prince does not appeal entreat, they will be forced to become nobles by receiving surnames by the Emperor's order excluding eldest son's grandchildren's line up to four generations.
皇玄孫ノ子孫タル王明治40年2月11日勅定の皇室典範増補第1条及ヒ皇族身位令第25条ノ規定ニヨリ情願ヲ為ササルトキハ長子孫ノ系統4世以内ヲ除クノ外勅旨ニ依リ家名ヲ賜ヒ華族ニ列ス