On August 1130, the Duke of Aquitaine William X of Poitiers, sieged the château.
As his first pontifical act, Clement II placed the imperial crown upon his benefactor and the queen consort, Agnes, daughter of William V, Duke of Aquitaine.
The relationship between William and his legitimate son William was troubled by his father's liaison with Dangereuse.
•
She was also mistress to her granddaughters' paternal grandfather William IX, Duke of Aquitaine.
Isembert was vanquished by Guillaume X, Duke of Aquitaine in 1130, leading to the subsequent destruction of his harbour of Châtelaillon.
•
Isambert, like all the Lords of Châtelaillon was a vassal of the Duke of Aquitaine and Count of Poitou.
The invasion of the Saracens, the wars of the dukes of Aquitaine with the early Carolingians, and lastly the Norman invasion were a series of disasters that almost destroyed the monastery.
Duke University | Duke Ellington | Duke | Duke of Wellington | Prince William, Duke of Cambridge | Duke of York | Aquitaine | Duke of Norfolk | Duke of Edinburgh | Duke of Burgundy | Prince Arthur, Duke of Connaught and Strathearn | George Villiers, 1st Duke of Buckingham | Prince Andrew, Duke of York | Elf Aquitaine | Duke of Northumberland | Alfred, Duke of Saxe-Coburg and Gotha | Prince Richard, Duke of Gloucester | Prince Frederick, Duke of York and Albany | George Duke | Charles Lennox, 2nd Duke of Richmond | Louis Philippe II, Duke of Orléans | Edward Seymour, 1st Duke of Somerset | Philippe II, Duke of Orléans | John Frederick II, Duke of Saxony | Hugh Grosvenor, 2nd Duke of Westminster | George Monck, 1st Duke of Albemarle | Frederick Schomberg, 1st Duke of Schomberg | Fernando Álvarez de Toledo, 3rd Duke of Alba | Duke of Buccleuch | Archduke Charles, Duke of Teschen |
June 9 – Battle of Toulouse: after besieging Toulouse for three months, Al-Samh ibn Malik al-Khawlani, the Wāli (governor) of Al-Andalus (Muslim Spain), is defeated (and dies of his injuries) by Odo the Great, Duke of Aquitaine, preventing the spread of Umayyad control westward from Narbonne into Aquitaine.
The Charte d'Alaon is a spurious and fraudulent charter purporting to provide a genealogy of the house of Odo the Great, Duke of Aquitaine (715 – 735).
In 718, Chilperic, in response, allied with Odo the Great, the duke of Aquitaine who had made himself independent during the contests in 715, but he was again defeated by Charles, at Soissons.
William I (22 March 875 – 6 July 918), called the Pious, was the Count of Auvergne from 886 and Duke of Aquitaine from 893, succeeding the Poitevin ruler Ebalus Manser.
In 745, Hunald the Duke of Aquitaine retired to a monastery on the island.
It is worth mentioning that in our days the Jakavičius – Grimalauskas Dynasty continuing related with European nobility and monarchy, proof of that was the relationsship as "fiance" of Marcia Bell and HRH Gonzalo de Borbón y Dampierre, Duke of Aquitaine and grandson of Spanish monarchs Alfonso XIII & Queen Victoria Eugenie of Battenberg (also granddaughter of Queen Victoria of the United Kingdom).