His second brother was Kichijito SAIGO who died in the Boshin War (Hokuetsu War), his third brother was Tugumichi SAIGO, who was a central figure in the Meji government, (known as Shingo, go is Ryuan) and his fourth brother was Kohei (Takakatsu, Takatake) SAIGO who died in the Seinan War.
次弟は戊辰戦争（北越戦争）で戦死した西郷吉二郎（隆廣）、三弟は明治政府の重鎮西郷従道（通称は信吾、号は竜庵）、四弟は西南戦争で戦死した西郷小兵衛（隆雄、隆武）。