▁about ▁the ▁early ▁Ang lo - S ax on ▁kingdom s . ▁Char ters , ▁which ▁recorded ▁royal ▁gr ants ▁of ▁land ▁to ▁individuals ▁and ▁to ▁religious ▁houses , ▁provide ▁further ▁information ▁on ▁Co en red ' s ▁reign , ▁as ▁does ▁the ▁Ang lo - S ax on ▁Chron icle , ▁compiled ▁in ▁W esse x ▁at ▁the ▁end ▁of ▁the ▁ 9 th ▁century . ▁The ▁Chron icles ▁anonymous ▁scri be ▁appears ▁to ▁have ▁incorpor ated ▁much ▁information ▁recorded ▁in ▁earlier ▁periods . ▁Co en red ▁is ▁also ▁mentioned ▁in ▁two ▁ 8 th - century ▁h agi ograph ies , ▁those ▁of ▁Saint ▁Wil fr id ▁and ▁Saint ▁G uth lac . ▁ ▁An c est ry ▁and ▁reign ▁In ▁ 6 5 8 , ▁Co en red ' s ▁father ▁W ulf here ▁came ▁to ▁the ▁throne ▁of ▁Mer cia ▁as ▁the ▁result ▁of ▁a ▁coup , ▁ending ▁a ▁three - year ▁period ▁of ▁North umb rian ▁control . ▁W ulf here ▁was ▁succeeded ▁on ▁his ▁death ▁( in ▁ 6 7 5 ) ▁by ▁his ▁brother ▁ Æ th el red , ▁Co en red ' s ▁uncle , ▁possibly ▁because ▁Co en red ▁was ▁too ▁young ▁to ▁rule . ▁Co en red ' s ▁mother ▁Er men ilda ▁became ▁a ▁nun ▁som etime ▁after ▁W ulf here ' s ▁death . ▁▁ Æ th el red ' s ▁decis ive ▁victory ▁over ▁the ▁North umb ri ans ▁at ▁the ▁Battle ▁of ▁the ▁Tr ent ▁in ▁ 6