Note, however, the information that Lady Ro was a younger paternal half-sister of Yoshitsune appears only in the "Heike Monogatari" (Tale of the Heike (the Taira family)) and the "Genpei Seisuiki" (Rise and Fall of the Minamoto and Taira clans), and has not been verified in historical sources such as "Gyokuyo" (Diary of Kanezane KUJO) and "Azuma Kagami" (Mirror of the East).
ただし、義経の異父妹としての廊御方は軍記物語の『平家物語』や『源平盛衰記』にのみ登場しており、『玉葉』、『吾妻鏡』など史料においては確認されていない。