In those days, Western guns were made and trial launches were conducted in Takeo, and Shigeyoshi was deemed to be the first person among the feudal lords of Japan who was successful in introducing Western military techniques.
そして、この頃には、武雄領でも西洋式大砲の鋳造や試射が行われており、茂義は、我が国の封建領主の中で最も早く西洋の軍事技術の導入に成功した人物と位置付けられる。