Piers Langtoft (died ~1307) was a chronicler who originated from Langtoft in Yorkshire. He was an Augustinian monk at Bridlington Priory, and wrote his own history of England in verse. The period covered is up to the death of King Edward I of England. It is thanks to Langtoft that we know the fate of Gwenllian, daughter of Llywelyn the Last of Wales.
