Later in life, Yoshiyasu performed a crucial function between the court and the newly commenced Kamakura bakufu (Japanese feudal government headed by a shogun), and he was promoted to the rank of Junii (Junior Second Rank) with the post of Gon Chunagon (provisional vice-councilor of state).
後年、能保は朝廷と草創期の鎌倉幕府との間に立って重きをなし、従二位・権中納言まで立身している。