The Ôsaki of [[Mutsu province]] were locally powerful from the middle of the 14th Century. They suffered a long period of internal strife starting in [[1536]] and were forced to call on [[Date Tanemune]] for assistance. Afterwards the Ôsaki came under [[Date clan|Date]] influence. | The Ôsaki of [[Mutsu province]] were locally powerful from the middle of the 14th Century. They suffered a long period of internal strife starting in [[1536]] and were forced to call on [[Date Tanemune]] for assistance. Afterwards the Ôsaki came under [[Date clan|Date]] influence. |