It is certain that Emperor Gensho is a Female-line Emperor having his mother as Emperor as well as being a Male-line Emperor that can be traced back to his father, therefore; he is a Female & Male-line Emperor.
元正天皇が母親に天皇を持つ女系天皇であったことは確かだが、同時に父親から皇統をたどることのできる男系天皇でもあり、男女双系天皇であると考えるのがふさわしい。