In 1657, the fifth son of Hidemune (the Uwajima domain founder), Munezumi DATE, was allowed to have a portion of the Uwajima domain (30,000 goku or 8,340 cubic meters), and established the Iyo-Yoshida Domain of the Uwajima Domain.
1657年宇和島藩初代藩主秀宗の五男・伊達宗純が宇和島藩より3万石を分知され宇和島藩伊予吉田藩を立藩。