The Holy Spirit appearing to the Infant Mary among Joachim and Anna, an angel foretelling to Joachim the birth of the Virgin Mary beyond

The attribution to Willemsen is suggested by a comparison with the paintings published as the work of this artist by Gregory Martin, The Maître aux Béguins: A proposed identification, Apollo Magazine, February 1991, pp.117ff and, Abraham Willemsen (again), Apollo Magazine, February 1993, pp.97ff.