In addition, there is an opinion that based on the precedent of Emperor Genmei, the male-line is maintained even if a female member of Imperial Family ascends to the throne as long as her husband is an old imperial family member from the imperial male-line.
また、この元明天皇の前例に則り、仮に女性皇族が即位しても夫が皇統に属する男系男子の旧皇族（旧宮家）であれば男系が維持されるという意見もある。