Aymar lived under the reign of the Carolingian overlord Charles III of France who gave to him, in the year 913, several strongholds on the river Allier, such as the castle in the medieval town of Bourbon-l'Archambault.
His line ended in 1200 with the death of Archambaud VII, whose granddaughter, Mathilde of Bourbon, then became the first dame de Bourbon (dame being the feminine form of seigneur/sire), as she was Archambaud's eldest living relative (the title being heritable by female family members).
Mathilde's husband, Guy II of Dampierre, added Montluçon to the possessions of the Lords of Bourbon, which had expanded to the river Cher during the 11th and 12th centuries.
Following the death of Archambaud IX in 1249 on crusade, the title then passed through his daughters; first, Matilda II (also known as "Mahaut"), Countess of Nevers, Auxerre and Tonnerre, and second, Agnes of Bourbon, whose husband, John of Burgundy, was the second son of the Duke of Burgundy, Hugh IV, and therefore a male-line descendant of Hugh Capet.
The son of Robert and Beatrice, Louis, became the first Duke of Bourbon, superseding the previous rank of seigneur.