Complex sentence: The two forces clashed in the Battle of Blore Heath on 23 September 1459 and Audley was killed after the battle, possibly by "Sir Roger Kynaston" of Stocks near Ellesmere (Kynaston incorporated emblems of the Audley coat-of-arms into his own).
Split into simpler sentences: The two forces clashed in the Battle of Blore Heath on 23 September 1459 and Audley was killed, possibly by "Sir Roger Kynaston" of Stocks near Ellesmere. After the battle (Kynaston incorporated emblems of the Audley coat-of-arms into his own).