It is said that Yoshihisa had not just wisdom and courage, but also he was also a learned person, having, for example, received lectures on the Kokin-shu (a collection of waka poems) from Yusai HOSOKAWA, and maitained close relations with Sakihisa KONOE, a chief adviser to the Emperor.
義久は智勇に優れていただけではなく、細川幽斎から古今伝授を受けたり、関白・近衛前久との親交が厚かったなど、教養人でもあったと言われている。