On 22 Jul 1470 Warwick the Kingmaker (age 41), King Henry VI of England and II of France (age 48) and Margaret of Anjou Queen Consort England (age 40) signed the Angers Agreement at Angers Cathedral [Map]. The agreement had been brokered by King Louis XI of France (age 47). Edward of Westinster Prince of Wales (age 16) and Anne Neville Queen Consort England (age 14) were betrothed as part of the Agreement.

Memoirs of Philip de Commines Book 3 Chapter V. 13 Dec 1470. By his management also a marriage was concluded between the Earl of Warwick's second daughter (age 14) and the Prince of Wales¹, which prince was the only son to King Henry VI. (who was at that time alive, and prisoner in the tower.) An unaccountable match! to dethrone and imprison the father, and marry his only son to the daughter of him that did it. It was no less surprising that he should delude the Duke of Clarence, brother to the king whom he opposed, who ought in reason to have been afraid of the restoration of the house of Lancaster; but affairs of so nice a nature are not to be managed without great cunning and artifice.

Note 1. Edward, son of Henry VI. and Margaret of Anjou. He married Anne, youngest daughter of the Earl of Warwick, and was killed in.the battle of Tewkesbury, on the 4th of May, 1471. His widow afterwards married the Duke of Gloucester, who subsequently ascended the throne as Richard III.