Sir Falkes de Breauté (died 1226) (also spelled Fawkes de Breauté or Fulk de Brent) was an Anglo-Norman soldier who earned high office by loyally serving first King John and later King Henry III in First Barons' War. He played a key role in the Battle of Lincoln Fair in 1217. He attempted to rival Hubert de Burgh, and as a result fell from power in 1224. His heraldic device was the griffin.
When he married, his new wife's home in London was then called "Fawkes Hall" (Falkes' Hall), which over the years changed into "Foxhall" and finally into "Vauxhall". The Vauxhall car company derived its name from that part of London and still uses de Breauté's griffin as its badge.
De Breauté was of obscure Norman parentage, and has been described as the illegitimate child of a Norman knight and a concubine, possibly a knightly family from the village of Bréauté. Most chroniclers, however, describe him as from common stock, and he was often referred to only by his first name, which was said to be derived from the scythe he had once used to murder someone, as a sign of contempt.
The first accurate records of his royal service are from 1206, when he was sent to Poitou by King John on royal service. Upon his return in February 1207 he was entrusted with the wardenship of Glamorgan and Wenlock, and around that time also knighted. He was then made constable of Carmarthen, Cardigan and the Gower Peninsula, and gained a fearsome reputation in the Welsh Marches. He was sent to destroy Strata Florida Abbey in 1212 for its opposition to the king, though the abbey was spared after the abbot paid a heavy fine of 700 Marks. He served regularly in royal service, including in trips to Flanders and Poitou, and was in high favour with the king. It is often said that he was a foreign mercenary condemned by Magna Carta; this is incorrect, and he was actually one of the royalists who swore to abide by the charter's terms.