Even though the engagement was canceled, I find it amazing that Anne was able to formally engage her daughter Claude, heiress to Brittany, to Archduke Charles (V) in the Treaty of Blois, when it was so clearly against her husband's interests as King of France, as it would mean a Habsburg-Burgundian encirclement of France. Did she just ignore her husband and go against his will or was Claude somehow "mama's special girl", as she was heiress to Anne's own duchy?
It would have caused a great difficulty for the next French King .The Queen was the major advocate of the Habsburg Union,Louis appeared to be in agreement with the Queen,he was secretly double dealing .
Behind the Queen's back he had his will changed & had a clause included which directed that Claude marry François d'Angoulême & another clause prohibited her from leaving the Kingdom until she married François d'Angoulême .Another part of his will also named the Queen as Regent with her sworn enemy,Louise de Savoie also having a prominent role in the Regency Council .
The King was also hoping that Queen Anne would give birth to a son,this he believed would undo most of the treaty .
Louis XII sent Georges Cardinal d'Amboise as his Chief Negotiator for the Treaty of Blois .The Habsburgs agreed to acknowledge French Soverignty over Burgundy & Flanders & also pledged to support Louis XII's investiture of Milan.The French offered Brittany,Blois,Nevers,Artois as territories for Claude & Charles,with Burgundy,Asti & Milan (should Louis die without a male heir).