License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Jean Boulanger. The Virgin seated with the infant Christ on her lap, the young Saint John the Baptist kneeling on Christ's cradle and kissing his foot, a lamb at right, after Reni, 1645–80. The Metropolitan Museum of Art.