It is worthy of special attention to note that the Konoe family has handed down its family treasure of ancient documents for over a thousand years through the Onin War (a civil war from 1467 to 1477 during the Muromachi period) and the Sengoku Period (Period of Warring States).
近衛家が、応仁の乱や戦国時代の動乱を経て、家伝の古文書類を千年以上にわたり伝えてきたことは特記に値する。