In Thomas Paine's The American Crisis, while ridiculing Sir William Howe and his recently obtained knighthood, said:
As a proper preliminary towards the arrangement of your funeral honors, we readily admit your new rank of knighthood. The title is perfectly in character, and is your own, more by merit than creation. There are knights of various orders from the knight of the windmill to the knight of the post. The former is your patron for exploits, and the latter will assist you in settling your accounts.
A knight of the post is a professional false witness, but I can't find what a knight of the windmill is.