As Tamenobu's second son had also passed away, third son Nobuhira succeeded Tamenobu, but the following year, the legitimate son of Nobutake, Kumachiyo TSUGARU (Okuma) backed by vassals on Nobutake's side such as Takehiro TSUGARU, claimed he was the legal successor to Tamenobu, which developed into a family feud over which arbitration was sought from the Edo shogunate governmenet (family feud of the Hirosaki domain).
為信の跡は三男・信枚（次男も既に死亡）が継いだものの、翌年信建の嫡男津軽熊千代（大熊）が津軽建広ら信建派の家臣に推されて為信の正嫡を主張し、江戸幕府に裁定を求めるお家騒動が勃発する（弘前藩お家騒動）。