Prince of Viana

Its creation and use was a reflection of a Western European trend of bestowing upon the heirs of a kingdom rents for his personal benefit.

Due to several historical events, such as the 15th century dynastic union of Spain between Isabella I of Castile and Ferdinand II of Aragon, as well as the early 16th century invasion and annexation of Navarre by Ferdinand II of Aragon, the title lost its importance.

Rather, it symbolizes the historical continuity of the former Crown of Navarre within the united Spanish monarchy.

[citation needed] The current holder of the Principality of Viana is Princess Leonor, daughter of Felipe VI of Spain and Queen Letizia.

There are still a few people left with the royal surname of Viana, though they no longer have the Spanish Throne.