Vicente Bacallar y Sanna, Marquis of Saint Philip and Viscount of Fuentehermosa, later italianized into Vincenzo Bacallar Sanna (Cagliari - Sardinia, island now belonging to Italy), 6 February 1669 – The Hague (Netherlands), 11 June 1726). He was a Sardiniannobleman, military officer, linguist, historian, politician and ambassador of the Spanish Empire. He was born to a noble Sardinian family when the kingdom of Sardinia was part of the Spanish crown.
He belonged to a noble Sardinian family originating from Valencia. When he was young, he probably fled to Spain, where he got an attentive military and policy education. He was appointed by Charles II of Spain governor of the Cape of Cagliari and Gallura and military governor of Sardinia. During the war of the Spanish succession, when Sardinian divided between Philip of Anjou (of the house of Bourbon) and Charles of Habsburg, Bacallar was loyal to the heir designated by Carles II, Philip of Anjou, who became king as Philip V. Due to his loyalty, the king awarded him as Marquis of Saint Philip (Marqués de San Felipe, in Spanish; not a feudal title, but given in homage to the king's patron saint) and Viscount of Fuentehermosa (Fuente Hermosa de Miranda, fief in the kingdom of Navarre) in 1709.