Etchū Province
In December 1536, Nagao Tamekage set out from the castle of Kasugayama to fight against the Ikkō-ikki of Kaga Province. They met in battle at a place called Sendanno, in Etchū Province. There, Tamekage was defeated and killed, along with many other Nagao clan warriors. Tamekage's son, known as Terutora, was not present at the battle, but would later become the famous Uesugi Kenshin.