It is said that the reasons for his dismissal were fraudulent crop yield accused by Nagamasa ASANO dispatched for Taiko-kenchi (the cadastral surveys conducted by Hideyoshi) and a trouble on adoption of Nagashige ASANO, the second son of Nagamasa ASANO by the Utsunomiya clan amongst others.
改易の理由は、太閤検地の為に派遣された浅野長政に石高不正を訴えられたことや、浅野長政の2男・浅野長重と宇都宮家の養子話のこじれがあった等と言われている。