The family line was once cut off due to the disturbance during the period of the Northern and Southern Courts (Japan), but during the early Edo period, the Nanba family was restored as they adopted Munekatsu NANBA (a son of Masatsune ASUKAI) from the Asukai family (Therefore, the Nanba family is regarded as a collateral branch of the Asukai family by some viewpoints).
南北朝時代(日本)の動乱で一時家系が絶えたが、江戸時代初期に飛鳥井家から難波宗勝（飛鳥井雅庸の子）を迎えて難波家を再興した（そのため難波家を飛鳥井家の庶流と見る考え方も存在する）。