His grandfathers: Takamitsu SAIGO and Tsunatake OYAMA (the second son of Tsunamichi OYAMA, a lord chamberlain, also a supply officer-cum-lord chamberlain of the lord residence in Edo Shiba, and died in 1834 due to illness)
祖父西郷隆充、大山綱毅（側用人大山綱道次男、江戸芝藩邸御広敷御用人、天保5年病没）