五蝶亭貞広「タイトル未詳」（吉田金四（人形遣））
五蝶亭貞広（不明-不明）は、初代歌川国貞の門人と思われ、歌川姓を名乗った。天保から嘉永にかけての作画が確認されており、多くの役者絵や風俗画を残している。五粽亭広貞と同一人物である可能性が指摘されている。
五蝶亭貞広（不明-不明）ごちょうてい・さだひろ
大坂の人。初代歌川国貞の門人とされる。俗称は三谷氏。貞広、浮世貞広、五蝶亭、五楽亭、南川と称した。
大阪(70)－画人伝・INDEX
文献：絵草紙に見る近世大坂の画家、近世大阪画壇、近世の大坂画壇
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