According to Clause 1, enlarged revision of this Law, it states a Prince can be demoted from nobility to subject upon receiving the emperor's order or by receiving a surname by invocation.
増補第1条には、「王ハ勅旨又ハ情願ニ依リ家名ヲ賜ヒ華族ニ列セシムコトアルヘシ」とある。