In [[1189]] Isa (Fujiwara) Tomomune was awarded the Date district of [[Mutsu province]] by [[Minamoto Yoritomo]] for loyal service and adopted the name of his new home. In the period of the Northern and Southern Courts in the 14th and 15th centuries the Date initially fought for the Southern Court but eventually submitted to the [[Ashikaga clan|Ashikaga]]. They expanded their influence during the Sengoku Period and reached their height under [[Date Masamune]]. The Date ruled the Sendai area into the Edo Period.
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In [[1189]] [[Ise Tomomune|Isa (Fujiwara) Tomomune]] was awarded the Date district of [[Mutsu province]] by [[Minamoto no Yoritomo]] for loyal service and adopted the name of his new home. In the [[Nanbokucho Period|Nanboku-chô period]] in the 14th and 15th centuries the Date initially fought for the [[Southern Court]] but eventually submitted to the [[Ashikaga clan]]. They expanded their influence during the [[Sengoku Period]] and reached their height under [[Date Masamune]] ([[1566]]-[[1636]]). The Date ruled [[Sendai han]] throughout the [[Edo period]], while a branch family, also maintaining the name Date, ruled the smaller [[Uwajima han]] in [[Iyo province]] on [[Shikoku]].