Hosokawa Yoriyuki was the Shogun's Deputy in 1367, and he served as Yoshimitsu's chief minister for six years.
Yoriyuki was appointed Shogun's Deputy in 1367, when Yoshiakira was very ill; on his deathbed, Yoshiakira entrusted Yoriyuki with the care of his son Yoshimitsu. Ashikaga Yoshimitsu became shogun the following year, at the age of ten. For the next six years, Yoriyuki served as his chief minister. 
