When he heard about the Mongol invasion attempts against Japan in 1281, he joined the Rokuhara army with his family and subordinates to defend Kyoto, and then jointed the Dazaifu defense forces by following Kintsuna UTSUNOMIYA.
弘安4年（1281年）、元軍の襲来（元寇）を聞くと、一族と配下の兵とともに六波羅の軍に属して京都防衛に努め、宇都宮公綱に従って大宰府の防衛に加わった。