Name: Taira no Atsumori (平 敦盛)
Birth/Death: (1169-1184)
Appearance: Book 7 Episode 19; Book 9 Episode 16, 18
Bio:
He is Kiyomori's nephew. His famous act debuts in book 9 part 16 when he runs into a battle with Kumagai. He loses the fight against Kumagai, but when he takes off his helmet Kumagai sees just how young Atsumori is and shares his grievances in killing him. With Kumagai's allies coming qucikly to his side, he cannot let Atsumori live and takes his head.
The Atsumori chapter has become a cultural icon of sorts, having Noh, Kyogen, etc. Having different portrayals of this story all across Japanese culture.