When their father retired in 1615, the 4th son, Nagamasa, and the 5th son, Naonaga, each received 10,000 koku out of the 30,000 koku that Nagamasu held in the Yamato District.
四男長政と五男尚長は1615年に父が隠棲した際に、長益が大和国内に領する3万石を分割して1万石ずつを与えられた。