"This is Murillo's most celebrated depiction of a single female figure, a subject comparatively rare in his work. The painting is usually dated to the late 1660s, and the model may be Murillo's only daughter, Francesca, who became a nun in 1671.
This figure’s youth, smile and lapful of flowers suggest that she is best understood as a personification of Spring - presumably one of a set of four seasons. It has recently been suggested that a painting at the National Gallery of Scotland, showing a similar, male, figure may be Summer."