In 1573, a weak threat from the Takeda clan as Shingen TAKEDA, an old enemy, was submerged in sickness, Terutora seized major parts of territories in Ecchu Province, and extended his influence to the Hida Province as the Ema clan yielded allegiance to him.
元亀4年（1573年）、宿敵・武田信玄が病没して武田氏の脅威が薄らぎ越中の過半を制圧、江馬氏の服属で飛騨にも力を伸ばした。