Waku Hanzaemon (1578-1638) was the second son of Waku Muneyoshi (1535-1615). He served Toyotomi Hideyoshi and Hideyori as their right hand man, and after the fall of the Toyotomi clan, was taken under the command of Date Masamune. Kamigawana Kanmono” in the address is the lord of Kamigawana Castle in Kamigawana Village, Shibata County.