The sword Katsumasa used at this time was the noted Masamune sword, which was later passed into the hands of Shigenaga HONJO to be renamed Honjo Masamune (the noted sword "Masamune" once owned by Shigenaga HONJO).
この時勝正が手にしていたのが名刀正宗で、本庄繁長の手に渡り本荘正宗と言われるようになったという。