duke of Savoy and king of Sardinia–Piedmont (1821–31).

The 11th child of Victor Amadeus III, he succeeded to his position when his brother Victor Emmanuel I abdicated in the face of an uprising of revolutionaries who demanded a new constitution. The revolution collapsed upon the intervention of Austrian troops, however, and Charles Felix ruled as an absolute sovereign for 10 years. He was the last ruler of the main Savoy line, being succeeded by Charles Albert.