Prince Edward, later Edward I of England, was imprisoned from May 14, 1264 until approximately early 1265 at Chester Castle, and guarded by his former allies against his father, including the Breretons. Chester Castle is only a few miles from Adlington. The barons probably hoped at this point to unseat Henry, and replace him with Edward. Henry had fled to France which leaves only Edward as possible father of Lucy.
"Edward went as far as backing the barons, including Simon de Montfort while Henry III was in France.
Fearing that Edward was plotting against him, Henry III returned to England and the two were reconciled. The barons subsequently rebelled, and at the Battle of Lewes on 14 May 1264, Simon de Montfort captured both Henry and Edward, later calling England's first Parliament of elected representatives. Prince Edward subsequently escaped captivity and suppressed the Baron's Revolt, killing de Montfort at the Battle of Evesham on 4 August 1265."