Masamune DATE, Daizen no daibu (Master of the Palace Table) and a son of Muneto, opposed to the territorial cession demand by Mitsukane ASHIKAGA, Kamakura kubo (Governor-general of the Kanto region), and fought against both Mitsukane and Mitsumori ASHINA of the Aizu region.
宗遠の子伊達政宗(大膳大夫)の時代に鎌倉公方足利満兼が領土の割譲を求めると、満兼や会津の蘆名満盛と争った。