Sakuma Nobumori was a retainer of Oda Nobuhide. He was thus treated as Oda Nobunaga's most important retainer and would come to fight in every important battle under Nobunaga's command such as the 1567 Siege of Inabayama Castle, the 1571 and 1573 Siege of Nagashima.

Oda Nobuhide was a Japanese daimyō and magistrate of the Sengoku period known as "Tiger of Owari" and also the father of Oda Nobunaga the first "Great Unifier" of Japan. Nobuhide was a deputy shugo (Shugodai) of lower Owari Province and head of the Oda clan which controlled most of Owari.