▁under ▁direct ▁authority ▁of ▁the ▁Duke ▁of ▁Aqu itaine , ▁who ▁was ▁also ▁the ▁King ▁of ▁England . ▁ ▁Control ▁over ▁the ▁territory ▁was ▁deleg ated ▁to ▁a ▁lord , ▁who ▁kept ▁the ▁castle ▁of ▁Ma ul éon ▁and ▁collected ▁the ▁tax es . ▁The ▁lord ▁of ▁Sou le ▁had ▁four teen ▁capt ains , ▁of ▁whom ▁only ▁one ▁was ▁English , ▁the ▁rest ▁being ▁either ▁locally - born ▁or ▁Gas cons . ▁The ▁ex - vis count ▁Aug er ▁III ▁al lied ▁with ▁the ▁Kingdom ▁of ▁Navar re , ▁and ▁taking ▁advantage ▁of ▁the ▁war ▁between ▁Philip ▁IV , ▁king ▁of ▁Navar re , ▁and ▁Edward ▁I ▁of ▁England , ▁re to ok ▁his ▁for tr ess ▁at ▁Ma ul éon ▁in ▁ 1 2 9 5 , ▁but ▁he ▁was ▁forced ▁to ▁hand ▁it ▁back ▁after ▁Aqu itaine ▁was ▁formally ▁declared ▁English ▁is ▁ 1 3 0 3 . ▁ ▁The ▁H undred ▁Years ' ▁War ▁kept ▁Sou le ▁isolated ▁from ▁the ▁exterior ▁for ▁many ▁years . ▁Finally , ▁in ▁ 1 4 4 9 , ▁an ▁army ▁led ▁by ▁Gast on ▁IV , ▁the ▁Count ▁of ▁Fo ix ▁and ▁Vis count ▁of ▁Bé arn , ▁took ▁possession ▁of ▁the ▁castle ▁in ▁the ▁name ▁of ▁the ▁French ▁king ▁ending ▁the ▁English ▁presence ▁in ▁Sou le . ▁ ▁Modern ▁Period ▁ ▁Sou le ▁under ▁French ▁rule ▁ ▁In ▁the ▁mid ▁ 1 5 th ▁century , ▁Sou le ▁finally ▁recogn izes ▁the ▁King ▁of ▁France ▁as ▁its ▁own , ▁with ▁the ▁Bas