From the Norman French form of the Welsh name Gwenhwyfar
, derived from the elements gwen
meaning "fair, white" and sebara
meaning "phantom, magical being". In Arthurian legend she was the beautiful wife of King Arthur
. According to the 12th-century chronicler Geoffrey of Monmouth, she was seduced by Mordred
before the battle of Camlann, which led to the deaths of both Mordred and Arthur. According to the 12th-century French poet Chrétien de Troyes, she engaged in an adulterous affair with Sir Lancelot
The Cornish form of this name, Jennifer
, has become popular in the English-speaking world.