Shikanosuke's decapitated head was identified by Yoshiaki ASHIKAGA, the then 15th shogun of the Muromachi bakufu (Japanese feudal government headed by a shogun), who was staying at Tomonoura in Bingo Province, and Terumoto MORI, after which it was interred by the local residents, with all due respect, in a burial mound located in front of the gate of Seikan-ji Temple, remains in the temple grounds to this day.
首級は備後国鞆の浦に在していた時の室町幕府15代将軍足利義昭や毛利輝元により実検が行われ、その後地元の人たちが手厚く葬った首塚が現在も残る（鞆の浦・静観寺山門前）。