Nijō Castle
was the 6th Hori "daimyō" of Suzaka. Naohiro was the eldest son of Hori Naohide and became "daimyō" on the retirement of his father in 1735. He served in the post of "Osaka kaban" and castellan of Nijō Castle. From 1746 he was an "Ōbangashira" and from 1751 was appointed "Fushimi Bugyō". His wife was a daughter of Mitake Sukenori of Tahara Domain. He retired in 1768 in favor his son and died in 1777.