Anne was formally betrothed to Queen Margaret's son, Edward of Westminster at the Chateau d'Amboise in France. They were married in Angers Cathedral probably on 13 December 1470. Because of the death of Prince Edward at the Battle of Tewkesbury on 4 May 1471, she was taken prisoner along with Queen Margaret. She was taken first to Coventry and then to the Duke of Clarence's house in London. The Duke of Clarence was Richard's (the future King's) brother and married to Anne's sister Isabella. He wanted to keep all the Neville money and would not let her leave. Richard rescued Anne. They were married the next year.