17th. century (Dutch?) The head has been cut from a larger canvas, possibly from a group portrait. There are some similarities with the work of Jan de Bray (c.1627–1697) to whom this painting was at one time attributed. (http://artuk.org/discover/artworks/head-of-a-woman-141548/terms.admin.qi.reference/earring-429/sort_by/object.lifecycle.creation.date.earliest/order/asc/page/5/view_as/grid)