Thomas Francis of Savoy, 1st Prince of Carignano was an Italian military commander and the founder of the Carignano branch of the House of Savoy, which reigned as kings of Piedmont-Sardinia from 1831 to 1861, and as kings of Italy from 1861 until the dynasty's deposition in 1946.

Charles Emmanuel I, known as the Great, was the Duke of Savoy and ruler of the Savoyard states from 30 August 1580 until his death almost 50 years later in 1630, he was the longest reigning Savoyard monarch at the time, only for his record to be surpassed by his great-grandson, Victor Amadeus II. He was nicknamed Testa d'feu for his rashness and military aggression.