[1] At some point between June 1573 and May 1575, Ichijō Tadamasa traveled to Tosa to meet with Chōsokabe Motochika head of the Chōsokabe clan.
[2] Tadamasa became governor of Tosa after marrying Motochika's daughter.
[1] Following his involvement in a plot against his father-in-law led by Hakawa Genba and others, he was exiled himself.
[1] His son Masachika was the last member of the Ichijō clan of Tosa.
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