On October 9, 1694, he tentatively adopted his younger brother Nagahiro ASANO because he had no children between Aguri, and gave him 3,000 koku crop yields of new field, making him independent as bakufu hatamoto (direct retainers of the bakufu, which is a form of Japanese feudal government headed by a shogun).
また元禄7年8月21日(旧暦)（1694年10月9日）、阿久里との間に子がなかったため、弟の浅野長広を仮養子に迎え入れるとともに新田3000石を分知して幕府旗本として独立させた。