This portrait, signed and dated to 1615, has traditionally been identified as portraying Maria Mollen, the Regent of the Meisjeshuis (The Girl's House) in Delft. A charitable institution founded in 1578, it had been established to support and educate orphaned girls in the town. She was painted by Mierevelt a year after the death of her husband, whose portrait was posthumously included by the painter and his son Pieter in the Anatomy Lesson of Dr Willem van der Meer, painted in 1617 (Delft, Stedelijk Museum Het Prinsenhof, inv. No. PDS 275).