Shigeuji was born in Kuzumaki-mura, Gamo-gun, Omi Province (present's Higashiomi City, Shiga Prefecture) (Kawamori, the base of the Yoshida clan, was in the neighborhood).
重氏は近江国蒲生郡葛巻村（現滋賀県東近江市）に生まれる（吉田氏本拠の川守は近隣）。