House of Dax
Cadet branch of the House of Gascony
- Coat of Arms
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House of Dax
Lords of Aspe, Mixe
and Ostabarret
Viscounts of Oloron and Dax
- Cadet Branches
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House of Gabarret
Viscounts of Gabarret, Gabardan
and Béarn
Issued from Donat Aner, younger son of Aner Sancho, Viscount of Oloron -
House of Beauville
Lord of Tursan and Miremont
Issued from Sancho Aner, younger son of Aner Sancho, Viscount of Oloron -
House of Gramont
Lords of Gramont and Bidache
Issued from Bergon, 2nd son of Garcia Arnaud, Viscount of Dax -
House of Luxe
Lords of Luxe
Issued from Garcia Arnaud, 2nd son of Arnaud Garcia, Lord of Mixe and Ostabarret -
House of Aspremont d'Orthe
Viscounts of Orthe
Barons of Peyrehorade
Issued from Garcia Arnaud, 2nd son of Arnaud II Fortis, Viscount of Dax