Konstancja Grabowska

Konstancja Grabowska (born Konstancja Czarnkowska-Anne Grabowska; Constance Czarnkowska Anne Davis; 2 July 1757 – 26 June 1839) was an princess of Austria, was the fifteenth and second youngest child of Francis I, Holy Roman Emperor and Empress Maria Theresa.

On January 1772, upon her marriage (at age of 15 years and 24 days) to King James Casimir I of Poland