According to the 'Choya Gunsai' (The Collected Official and Unofficial Writings), he turned wastelands in the area into farmland, and he established a manor called 'Mobara no Sho' (the Mobara manor).
「朝野群載」によれば、近辺の原野を開墾して牧野とし「藻原荘」として成立させたとされる。