He had a firm character and was faithful; when a rebellion happened on the recall of Imperial Prince Munetaka on August 11, 1266, many trusted vassals escaped from Shogun's palace leaving the Imperial Prince, whereas only Tadakage and a small number of people stayed in Shogun's palace; this attitude of him is written in "Hojo kudaiki" (Records of nine generations of the Hojo clan) as being valuable.
気骨のある誠実な人物で、文永3年（1266年）7月3日、宗尊親王の更迭をめぐる騒動の際には多くの近臣が親王を見捨てて将軍御所から逃げ出す中、忠景ら数名のみが御所に残留し、その姿勢を『北条九代記』などに評価されている。