King John
Release of the Duchess
On 1206, Eleanor of Brittany would plead for her release and husbands were chosen by her uncle and her regents in Brittany and an Anglo-Aragonese alliance was made and Prince Ferdinand of Aragon was chosen by John as the consort of the captive duchess and Ferdinand was forced in the Treaty to swear fealty and give up Eleanor’s claims to England and Angevin Possessions to John, this was an alliance between Aragon and England in order to strengthen its control over its French possessions.
Eleanor, Duchess of Brittany would be released on 1207 and married her new Duke Consort Ferdinand of Aragon, she gave birth to four children namely Geoffrey(1208, Matilda(1209), Maria(1212) and Arthur(1217)), the two would have a cordial and good relationship, Alix of Thouars would be sent and married to Hugh, duke of Lusignan in order to quiet him about Isabella of Angouleme.
there are three nieces of John, were still unmarried and can still marry which are Alix and Philippa of Champagne, grand daughters of Marie of France, Beatrice of Burgundy, grand daughter of Alix of France and Mafalda of Castile, daughter of Eleanor of Castile, Mafalda is more marriageable at that point, the death of Maria of Montpellier in Puerperal fever after the birth of his son James would allow a further marriage alliance with John and as well as the nullification of the marriage of Maria of Montpellier would not be even needed at the birth of the heir to Aragon and Montpellier, the dowry of the proposed bride with Peter II would include the English claims to the County of Toulouse and claims to Provence via the Countess Philippa.
The chosen bride would be chosen of John’s neices and Mafalda of Castile was chosen, Mafalda of Castile would have given Peter II of Aragon four more surviving children, Philippa of Aragon(1209), Raymond of Aragon(1212), Bohemond of Aragon(1213) and a daughter named Eleanor of Aragon(1218).