Portrait of Aletta Hannemans, who married Jacob Pietersz Olycan in 1624 and Nicolaes van Loo in 1640. She is shown three-quarters-length, standing, turned three-quarters left, looking at the spectator. She wears a costly bridal stomacher called a "bruidsborst", worked with gold thread and showing various flowers. She wears it over a colorful purple and red skirt that is draped over a French fardegalijn, which supports the heavy gold chain wrapped around her gown and through her "vlieger". Her vlieger is edged with black velvet and shows off her stomacher and skirt. Her sleeves are attached via shoulder wings to her dress with small silver aglets. Around her neck she wears a starched linen figure-eight collar, and over her hair a diadem cap with lace edging. She holds a pair of embroidered bridal gloves and wears a wedding ring on her right forefinger. She also wears gold bracelets and lace wrist collars.

Pendant of File:Frans Hals - Portrait of Jacob Olycan - Mauritshuis 459.jpg.

The paintings were restored in 2007. During restoration, technical analysis confirmed what had long been thought, that the poorly rendered coats of arms were later additions not by Frans Hals (the pigment Prussian blue was found, but this pigment was first synthesized in 1706). The decision was taken to over paint the arms. Water soluble paints were used so that the over painting may be easily removed at a later date should this be wanted.