Signed and dated lower right (near Cupid's head): Moreelse fecit / 1624.
Provenance: sale, Mak B. V., Dordrecht, 18 December 1979, lot 156 ; Private collection, Belgium
Paulus Moreelse, started his artistic career as a pupil of Michiel van Mierevelt, and was a highly talented portrait painter. Portraits of children are among his best works. A comparable painting, dated 1630, is in the collection of the Hermitage, St. Petersburg (https://www.arthermitage.org/Paulus-Moreelse/Venus-and-Cupid.html)
About Moreels, click on: http://www.thekremercollection.com/paulus-moreelse/