In 1537, Nobutora's oldest daughter Jokeiin married Yoshimoto and welcomed the daughter of the court noble Sanjo Family as legal wife of his heir Harunobu, arranged by the Imagawa clan.
天文6年（1537年）には長女・定恵院を義元に嫁がせ、今川氏の仲介により嫡男晴信の室に公家三条家の娘を迎えた。