Henri de la Rochejaquelein
Henri du Vergier, comte de la Rochejaquelein (French pronunciation: [ɑ̃ʁi dy vɛʁʒje kɔ̃t də la ʁɔʃʒaklɛ̃]; 30 August 1772 – 28 January 1794) was the youngest general of the Royalist Vendéan insurrection during the French Revolution. At the age of 21, he served as commander-in-chief of the Catholic and Royal Army.
Source: Wikipedia — Henri de la Rochejaquelein (CC BY-SA 4.0)