Lord of Tsuneyama Castle in Bitchu, heir of the local lord Ueno Takanao, from a branch of the Ueno family said to descend from the Ashikaga. He married Tsuruhime, daughter of the Bitchu warlord Mimura Iechika. In 1575, when his relative by marriage Mimura Motochika was defeated by the Mori and took his own life, Takanori sided with the Mimura; as Tsuneyama Castle was surrounded, he killed his second son and sister before taking his own life alongside his heir Takahide. His wife Tsuruhime is said to have led over thirty attendants in a charge against the besieging army before dying by her own hand — remembered as the "Tsuneyama Women's Army."

A warrior who upheld his loyalty to his in-laws, the Mimura clan, choosing to share their fate even against overwhelming odds. His dramatic end alongside his wife Tsuruhime left a lasting mark on later generations.

The tragedy of Tsuneyama Castle's fall and the legend of the "Tsuneyama Women's Army" remain a story symbolizing the Bitchu Rebellion, still told in the region today.