In those days, the Ueno clan enjoyed prosperity by working as Shugodai (deputy military governor) together with the Ishikawa clan and the Sho clan under the supervision of the Hosokawa clan, the military governor of Bicchu, but unlike the other clans, the Ueno clan lost the post in early stage.
)この頃の上野氏は備中守護細川氏の下、石川氏・庄氏とともに備中守護代を務めて家格を誇っていたが、この両氏と異なり、早くに守護代の地位を失っている。