In October 1857, Burden and her sister Elizabeth, known as Bessie, attended a performance of the Drury Lane Theatre Company in Oxford. Jane Burden was noticed by Dante Gabriel Rossetti and Edward Burne-Jones who were members of a group of artists painting the Oxford Union murals, based on Arthurian tales. Struck by her beauty, they asked her to model for them. Burden sat mostly for Rossetti as a model for Queen Guinevere and afterwards for William Morris, who was working on an easel painting, "La Belle Iseult", now in the Tate Gallery. During this period, Morris fell in love with Burden and they became engaged, though by her own admission she was not in love with Morris.