"The Lady of Shalott" is a ballad by the English poet Alfred, Lord Tennyson (1809–1892). Like his other early poems – "Sir Lancelot and Queen Guinevere", and "Galahad" – the poem recasts Arthurian subject matter loosely based on medieval sources. Tennyson wrote two versions of the poem, , of 20 stanzas, , of 19 stanzas.
The poem is loosely based on the Arthurian legend of Elaine of Astolat, as recounted in a thirteenth-century Italian novella titled Donna di Scalotta (No. LXXXII in the collection Cento Novelle Antiche); the earlier version is closer to the source material than the latter. Tennyson focused on the Lady's "isolation in the tower and her decision to participate in the living world, two subjects not even mentioned in Donna di Scalotta."
The first four stanzas of the 1842 poem describe a pastoral setting. The Lady of Shalott lives in an island castle in a river which flows to Camelot, but the local farmers know little about her.
Stanzas five to eight describe the lady's life. She suffers from a mysterious curse and must continually weave images on her loom without ever looking directly out at the world. Instead, she looks into a mirror, which reflects the busy road and the people of Camelot who pass by her island.
The reflected images are described as "shadows of the world", a metaphor that makes it clear they are a poor substitute for seeing directly ("I am half-sick of shadows").
Stanzas nine to twelve describe "bold Sir Lancelot" as he rides by and is seen by the lady.
The remaining seven stanzas describe the effect on the lady of seeing Lancelot; she stops weaving and looks out of her window toward Camelot, bringing about the curse.
She leaves her tower, finds a boat upon which she writes her name, and floats down the river to Camelot. She dies before arriving at the palace. Among the knights and ladies who see her is Lancelot, who thinks she is lovely.
According to scholar Anne Zanzucchi, "in a more general sense, it is fair to say that the pre-Raphaelite fascination with Arthuriana is traceable to Tennyson's work". Tennyson's biographer Leonée Ormonde finds the Arthurian material is "Introduced as a valid setting for the study of the artist and the dangers of personal isolation".