Viscounty of Marsan

• Ruling Houses
• 

  House of Marsan

• 

  House of Comminges

• 

  House of Matha

• 

  House of Montcada

• 

  House of Foix-Grailly

• 

  House of Bourbon
  Joined with royal domain

• 

  House of Lorraine-Harcourt
  Henri de Lorraine

• 

  House of Lorraine-Marsan