jester

A jester, also known as joker, court jester, or fool, was a member of the household of a nobleman or a monarch kept to entertain guests at the royal court. Jesters were also travelling performers who entertained common folk at fairs and town markets, and the discipline continues into the modern day, where jesters perform at historical-themed events. Jester-like figures were common throughout the world, including ancient Rome, China, Persia, and the Aztec Empire.