which yakuza clan belonged Shimizu Jirocho (1820-1893)? he's considered the first known yakuza boss but he isn't part of Aizukotetsu-kai founded in 1868 and considered the oldest yakuza group still active
He founded the Shimizu clan.
Shimizu family sixth generation succession problem
In 1966, Jirocho Shimizu's 5th generation, the ``legitimate Shimizu family,'' was dissolved, and in 2007, Yasuo Takagi , the second leader of the Yamaguchi-gumi Mio - gumi, revived it as `` An article was published in a weekly magazine that he would succeed to the name as "Sixth Generation " .
