Beata Beatrix, 1872 by Dante Gabriel Rossetti, The Art Institute of Chicago.
This is a portrait of Rossetti's wife Elizabeth Siddal that was painted after her death. In it he casts her as Dante's Beatrice, thereby casting himself as his namesake. When Siddal died he was so overcome with grief he buried his manuscript book of poetry along with her (five years later he retrieved it).