 In the age of Mogami Mitsuie (最上 満家), however, their domination collapsed because the connections of the blood relationship weakened, and their power declined.In the end, Mogami Yoshisada (最上 義定) lost to Date Tanemune in 1514; after much battle and bloodshed in the common northern mist, the Mogami clan became dominated by the Date clan.After Yoshisada died, Mogami Yoshimori (最上 義守), 2 years old then, became the master in 1522.