戦国大名23D　斯波家Ⅳ　斯波義敏　斯波義廉　武衛騒動と足利義政【研究者と学ぶ日本史】

New channel 日本史オンライン講座: title sample judged 'whole' (A dedicated Japanese history teaching channel with lecture series, scholar-led seminars, and structured courses that ove); 0 of 3 sampled transcripts showed teaching, 0 not; titles picked one by one, checked strictly; oEmbed verified.