Charles Emmanuel I, Duke of Savoy

Charles Emmanuel I, known as the Great and nicknamed Testa di Fuoco, was the 11th Duke of Savoy and ruler of the Savoyard states from 30 August 1580 until his death on 26 July 1630, nearly 50 years later. At the time of his death, he was the longest-reigning Savoyard monarch, a record later surpassed by his great-grandson Victor Amadeus II.