<Li> In the film King Arthur, Guinevere, played by British actress Keira Knightley, is depicted as a Pictish princess in captivity of a Roman noble family in the far north of Britain . Arthur, charged by Bishop Germanus with escorting the family to safety in light of an impending Saxon invasion, discovers her captivity and liberates her . While traveling back to Roman territory, she introduces Arthur to Merlin who attempts to persuade Arthur to lead the Picts (called Woads in the film) to battle the Saxon army . Once back in Roman territory, their relationship culminates in a brief romance, after which Arthur decides to remain at the Roman outpost to fight the Saxons at Hadrian's Wall while his knights return to Rome . In the climactic Battle of Badon Hill, Guinevere leads a Pictish detachment of archers against the first wave of Saxon invaders, and is nearly killed in close - combat before being rescued by Lancelot . Following the battle, Arthur and Guinevere are married by Merlin in a ceremony at Stonehenge . </Li> <Li> In the television series Camelot, Guinevere is depicted by Tamsin Egerton . An ambitious and strong - willed woman, she is a great support to Arthur and they develop a strong undeniable attraction . However, she is married to Leontes, one of Arthur's most loyal knights, which frustrates their relationship . </Li> <Li> Guinevere appears in ABC's television series Once Upon a Time, played by actress Joana Metrass . This version of Guinevere is portrayed with a noticeable Castilian accent . </Li> <Li> Bernard Cornwell's Arthurian series of novels The Warlord Chronicles depicts Guinevere as the princess of Henis Wyren in North Wales . She is a devoted follower of the Ancient Egyptian goddess Isis . She has ambitions of becoming queen of Dumnonia and weds Arthur, who is the illegitimate son of Uther Pendragon in these novels . The character is fiercely anti-Christian . </Li>

When does arthur fall in love with gwen