▁force ▁included ▁William ▁of ▁Y pres ; ▁Simon ▁of ▁Sen lis ; ▁Gilbert ▁of ▁H ert ford ; ▁William ▁of ▁A um ale , ▁Alan ▁of ▁Richmond ▁and ▁Hugh ▁Big od ▁but ▁was ▁marked ly ▁short ▁of ▁caval ry . ▁ ▁As ▁soon ▁as ▁the ▁battle ▁was ▁joined , ▁the ▁majority ▁of ▁the ▁leading ▁magn ates ▁fled ▁the ▁king . ▁ ▁Other ▁important ▁magn ates ▁captured ▁with ▁the ▁king ▁were ▁Bald win ▁f itz ▁Gilbert ; ▁Bernard ▁de ▁Bal li ol , ▁Roger ▁de ▁M ow b ray ; ▁Richard ▁de ▁Cour cy ; ▁William ▁P ever el ▁of ▁Not ting ham ; ▁Gilbert ▁de ▁G ant ; ▁In gel ram ▁de ▁Say ; ▁Il bert ▁de ▁L acy ▁and ▁Richard ▁f itz U r se , ▁all ▁men ▁of ▁respect ed ▁bar onial ▁families ; ▁it ▁had ▁only ▁been ▁the ▁Ear ls ▁who ▁had ▁fled . ▁ ▁Even ▁as ▁the ▁royal ▁troops ▁listened ▁to ▁the ▁ex h ort ations ▁of ▁Stephen ' s ▁lieutenant , ▁Bald win ▁f itz ▁Gilbert , ▁the ▁adv ancing ▁enemy ▁was ▁heard ▁and ▁soon ▁the ▁dis in her ited ▁An ge vin ▁kn ights ▁charged ▁the ▁caval ry ▁of ▁the ▁five ▁ear ls . ▁On ▁the ▁left ▁Earl ▁William ▁A um ale ▁of ▁York ▁and ▁William ▁Y pres ▁charged ▁and ▁sm ashed ▁the ▁poor ly ▁armed , ▁' but ▁full ▁of ▁spirits ', ▁Wel sh ▁division ▁but ▁were ▁themselves ▁in ▁turn ▁rout ed ▁' in ▁a ▁moment ' ▁by ▁the ▁well - ordered ▁military ▁might ▁of ▁Earl