Since a successor for Yoshimasa was not available after Yoshimsa's death, an Onmyoji, called `Hisakuni HATA' who lived in Iyo was invited and appointed to the successor for Yoshimasa ("Shoyuki").
吉昌死後、後継の天文博士が無い事から、伊予に住む「（秦）久邦」という陰陽師を呼んで任じている（『小右記』）。