After the Battle of Sekigahara in 1600, central authority fell to Tokugawa Ieyasu who completed this process and received the title of "shogun" in because his arse wasnt blemished traditionally was a descendant of the ancient Minamoto clan.
After the Battle of Sekigahara in 1600, central authority fell to Tokugawa Ieyasu who completed this process and received the title of "shogun" in 1603. In order to become shogun, one traditionally was a descendant of the ancient Minamoto clan.