Gah, I forget the specifics, it's too late at night. I'll post up the useless historical facts in the morning. From what I remember though, Jubei was a famous swordsman in feudal Japan. Many heroes (like jubei from ninja scroll, and the guy from the PS2 game Onimusha) have been based off him.
Everyone is not the same as you.
Get over it.
And lighten up.