Charles Emmanuel IV of Sardinia

Charles Emmanuel IV was King of Sardinia from 1796 to 1802. He abdicated in favour of his brother Victor Emmanuel I.

Carlo Emanuele Ferdinando Maria di Savoia was born in Turin, the eldest son of Victor Amadeus III, King of Sardinia and of his wife Infanta Maria Antonietta of Spain. From his birth until his own succession to the throne of Sardinia in 1796 Charles Emmanuel was styled Prince of Piedmont.

Source: Wikipedia