The Tokugawa clan, which produced successive shogun rulers throughout the Edo Period (1603-1867), will hold a ceremony Jan. 29 to formally anoint its first new head in more than half a century.

Tokugawa Ieyasu was a member of the Matsudaira clan and claimed to be a descendant of the Seiwa Genji branch of the Minamoto clan, which earned him a designated rank as a lower-grade Lord.