Guinevere
Guinevere was the wife of King Arthur in the Camelot stories. Part of the story is that she fell in love with Lancelot, Arthur's very close friend and greatest knight.
Guinevere Media
Guinevere by Henry Justice Ford (c. 1910)
"Winlogee" depicted on the Italian Modena Archivolt (c. 1120–1240)
N. C. Wyeth's illustration for The Boy's King Arthur, abridged from Le Morte d'Arthur by Sidney Lanier (1922): "He [Lancelot] rode his way with the Queen unto Joyous Gard."
The Parting of Sir Lancelot and Queen Guinevere. 1874 photograph by Julia Margaret Cameron published in Alfred Tennyson's Idylls of the King and Other Poems (1875).
Florence Harrison's 1914 title illustration for the poem by William Morris