In the document known as Chusonji Kuyo Ganmon (Prayer for the Dedication of Chuson-ji Temple), he referred to himself as 'chief of eastern barbarians' and 'head of subjected barbarians.'
ちなみに中尊寺供養願文として知られる文書では、自らを「東夷の遠酋」「俘囚の上頭」と表現している。