Career
Naganao was the 11th son of Mori Nagatsugu, the lord of the Tsuyama Domain (later moved to Nishi-Ebara). Naganao was left out of this line, but received a stipend of 1500 hyō from Naganari in 1694. Naganao became lord of Nishi-Ebara in 1698, and was transferred to the Ako domain in 1706.
His descendants remained as rulers of the domain until the Meiji Restoration.