Set in the tracery above the three-light window depicting St Anne, the Virgin Mary, and St Elizabeth—designed respectively by Ford Madox Brown (Anne and Elizabeth) and Edward Burne-Jones (central Mary)—this Annunciation scene was designed by William Morris in 1880.

The quatrefoil composition shows Gabriel and the Virgin Mary meeting within a densely patterned garden, a setting characteristic of Morris’s own hand rather than that of Burne-Jones. The figures are rendered with Morris’s distinctive linearity and upright stillness, framed by stylised foliage and a deep blue sky formed of carefully leaded geometric pieces. A vase of white lilies, the traditional symbol of Mary’s purity, stands between the angel and the Virgin.