Bartholomew "Tristan" de Clermont-Lodève (1380 – c. 1432), Count of Copertino, was a French-born knight who married Catherine Orsini del Balzo, youngest daughter of Mary of Enghien and Raimondo Orsini del Balzo, Prince of Taranto.^[1] He was the father of Isabella of Clermont, Princess of Taranto, the first consort of King Ferdinand I of Naples.

Documents and sources about Tristan, whose proper first name was Bartholomew, are scarce. Tristan de Clermont (Italian: Tristano di Chiaromonte) became Count of Cupertino by his wife's dowry.

In 1429 Tristan divided the inheritance between his children. They were:

• Raymond de Clermont (Raimondello di Chiaromonte), died on 2 March 1443, leaving his inheritance to his sister Sancia;
• Sancia, who married Francesco del Balzo, Duke of Andria^[2]
• Margherita, who married Antonio Ventimiglia, Marquess of Geraci, Grand Admiral;
• Antonia, alleged somewhere to have married Thomas Palaeologus, titular Despot of Morea, as brother of Emperor Constantine and heir presumptive to the throne of the Byzantine Empire;
• Isabella, who married Ferdinand of Aragon, later King of Naples^[1]

• Petracca, Luciana (2022). Le terre dei baroni ribelli: Poteri feudali e rendita signorile nel Mezzogiorno aragonese. Viella libreria editrice.
• Williams, George L. (1998). Papal Genealogy: The Families and Descendants of the Popes. McFarland & Company, Inc.

Wikimedia Commons has media related to Tristan de Clermont.