References in classic literature ?
I believe he had been knighted himself for storming the English grammar at the point of the pen, in a desperate address engrossed on vellum, on the occasion of the laying of the first stone of some building or other, and for handing some Royal Personage either the trowel or the mortar.
He fought in the English wars in France, and was knighted by Edward III; afterwards he collected a body of troops and went into Italy.
Aye, there have been generations of Sir Johns among you, and if knighthood were hereditary, like a baronetcy, as it practically was in old times, when men were knighted from father to son, you would be Sir John now.