The wench doth redeemed herself.

TMZ hath learnethed Lady Victoria Beckham is making up for stiffing her waiter after a feast and a jousting show at Medieval Times in Southern California this weekend.

This comes straight from the horse's mouth -- Beckham's assistant phoned the MT kingdom and informed them that a "generous gratuity" has been sent to the food server. The tip was paid for with a futuristic plastic charging card.

We're told the assistant apologized for the mix-up and claimed service was "excellent."

And with Posh's noble act ... there was peace in the kingdom once again.