Wilhelm Hensel (6 July 1794 – 26 November 1861) was a German painter, brother of Luise Hensel, husband to Fanny Mendelssohn, and brother-in-law to Felix Mendelssohn.
Source: Scan aus Eckart Kleßmann - DIE MENDELSOHNS, Bilder aus einer deutschen Familie, Artemis Verlag 1990, ISBN:3-7608-1020-9, S. 105 License: CC-PD-Mark