Gaston, Prince of Viana, also called Gaston de Foix, was the son and heir of Gaston IV, Count of Foix, and Infanta Eleanor of Navarre. As the expected successor to his mother and his grandfather, John II of Navarre, he was called Prince of Viana.
- Occupation
- Prince of Viana
- Born
- 1444
- Died
- November 23, 1470