 was a Sō clan "daimyō" (feudal lord) of the island domain of Tsushima at the end of Japan's Edo period.
Yoshinori was the head of the Sō clan from 1842 through 1862.
Black ships.
Sō "Tsushima-no-kami" was a senior member of the Imperial Commission which was delegated the responsibility of meeting with Commodore Perry and his men on March 8, 1854. He sat next to "Daigaku-no-kami" Hayashi Akira in the conference meeting.
In the context of this unique negotiation with the Americans, Yoshinori's rank was considered secondary only to Hayashi. Perry construed his counterparts as an Imperial Commission consisting of five Commissioners with supporting staff and military support:
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Further reading.
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