豊臣秀頼
Before dying in 1598, Hideyoshi named Toshiie to the council of Five Elders to support Toyotomi Hideyori until he was old enough to take control on his own. Matsu gained the position of nanny of Toyotomi Hideyori (Yodo-dono's son and Hideyoshi's successor). She was in the position of a nanny, such as attending with Hideyoshi's wife and even at the cherry blossom viewing of Daigo and became in her own a retainer of the Toyotomi clan.