All the female Emperors including Empress Jingu and Iitoyo no himemiko (Princess Iitoyo) were female Imperial members of the male line in the Imperial Family (Female Emperors of the male line), when they were married, they were Emperor's Empresses before succession to the throne and the husbands (Emperors) previously passed away.
神功皇后や飯豊皇女を含め彼女らはすべて男系皇族である女性（男系女性天皇）であり、かつ既婚の場合は、即位に先立ち天皇の妻（皇后）で夫は故人だったものである。