Charles Martel, Duke of Calabria (Italian:Carlo Martello) is a name and title shared by two short-lived heirs to the throne of theKingdom of Naples.

Charles Martel (13 April 1327 – 21 April 1327), was the third child and first son ofCharles, Duke of Calabria, heir ofRobert, King of Naples andYolande of Aragon and his wifeMarie of Valois, a niece ofKing Philip IVle bel of France.

At the time of his birth inFlorence, his father Charles had survived his only brother Louis. The newborn prince, his sister and his father were the only living, legitimate, male-line descendants of his paternal grandfather,Robert, King of Naples. Charles also had a surviving daughter, Maria, who would die aged two in 1328. The next-in-line to the throne wasPhilip I, Prince of Taranto, the son ofCharles II of Naples.

The young prince died only eight days after his birth, in Florence. His death left Joanna again heir to the throne. Joanna eventually became Queen of Naples — a younger sister to the Duke was born after his father died, in 1329.

Charles Martel, Duke of Calabria (25 December 1345 – 10 May 1348), was the only son ofJoanna I of Naples, fathered by her first husband,Andrew, Duke of Calabria.^[1]

At the time of his birth inNaples, Joanna had survived her own brothers and only had a younger sister. The newborn Duke of Calabria and his mother and aunt were the only living, royal, legitimate descendants of his paternal great-grandfather,Robert, King of Naples. The heir presumptive since wasCharles of Durazzo. Charles was betrothed toJoanna of Durazzo, his cousin, in 1347. In February 1348, the little Duke was transferred toHungary.

The young Duke died only three years after his birth, inHungary. He was buried in theSzékesfehérvár Basilica.

• Dukes of Calabria
• Capetian House of Anjou
• Joanna I of Naples
• Italian royalty who died as children
• Heirs apparent who never acceded
• Sons of queens regnant

• Articles with short description
• Short description is different from Wikidata
• Articles containing Italian-language text