Jožefa Košir was born in Ljubljana’s Krakovo district in 1832, the daughter of Jožef Podkrajšek. She was the second wife of the carpenter Janez Košir, whom she married in 1848. Stroj has depicted her from the back, her head turned to look over her shoulder towards the viewer. Her bare neck adorned with a pearl necklace and shoulders from which her fur collar has slid are an academic attempt at capturing the sensuality of the lady portrayed. Her right arm is adorned with rich jewellery and her hand elegantly clasps her heavy velvet cloak, which is accentuated by unrealistic glints of light.
In the last decade of his career, Stroj limited his use of colours and details and devoted himself to compactness and voluminous physicality. Virtuosic technical skill and a realistic treatment of physiognomy place Stroj’s late works among the finest middle-class portraits in nineteenth-century Slovenia. The painting is a pendant to the portrait of Janez Košir.