Dirck Jacobsz.
(1496 - 1567)
 

Dirck Jacobsz was a Dutch Renaissance painter. His exact birthplace is unknown, but it was somewhere near Amsterdam.

https://en.wikipedia.org/wiki/Dirck_Jacobsz.

Jacob Cornelisz. van Oostsanen Painting a Portrait of His Wife
c. 1550
Oil on wood panel
62 x 49.4 cm
Toledo Museum of Art, Ohio
http://emuseum.toledomuseum.org/objects/55302/jacob-cornelisz-van-oostsanen-painting-a-portrait-of-his-wi?ctx=186d285f-46b1-456f-a7ac-3ea6962e4f73&idx=0

Dirck Jacobsz here depicted his deceased father, Jacob Cornelisz van Oostsanen (about 1472-1533), also a painter. The painting within the painting shows Jacobsz’s mother, who died some years after her husband, possibly around the time this panel was painted. This unusual double portrait seems to be a kind of personal memorial by the son, who would have been positioned before the panel as painter, viewer, and object of his parents’ “attention.” The picture may also have served a more public function, since it possibly was installed above the couples’ grave.