Great figures who went through “Made a big mistake”

You made a mistake that's hard to undo. Read the life stories of 1 Japanese historical figure who went through something similar.
Figures who went through this
- Hiraga Gennai — The Man Who Would Not Be a Retainer
At a party, nobody could open a bag fastened with a puzzle ring. A man sitting at the lowest seat thought for a while, and opened it. He was offered a fief of two hundred koku, was mocked as a "yamashi," a swindler, and in the end struck down a man for reasons no one knows. His friend carved a question on his grave: why was even his death so far from ordinary?