▁the ▁north ▁of ▁Cer ed ig ion . ▁Though ▁O w ain ▁was ▁later ▁recon ci led ▁with ▁Cad wal adr , ▁from ▁ 1 1 4 3 , ▁O w ain ▁ruled ▁alone ▁over ▁most ▁of ▁north ▁Wales . ▁In ▁ 1 1 5 5 ▁Cad wal adr ▁was ▁driven ▁into ▁ex ile . ▁ ▁O w ain ▁took ▁advantage ▁of ▁the ▁An archy , ▁a ▁civil ▁war ▁between ▁Stephen , ▁King ▁of ▁England , ▁and ▁the ▁Em press ▁Mat ilda , ▁to ▁push ▁G w yn ed d ' s ▁boundaries ▁further ▁east ▁than ▁ever ▁before . ▁In ▁ 1 1 4 6 ▁he ▁captured ▁Mold ▁Castle ▁and ▁about ▁ 1 1 5 0 ▁captured ▁Rh ud d lan ▁and ▁enc ro ached ▁on ▁the ▁borders ▁of ▁Pow ys . ▁The ▁prince ▁of ▁Pow ys , ▁Mad og ▁ap ▁M ared ud d , ▁with ▁assistance ▁from ▁Earl ▁Ran ulf ▁of ▁Ch ester , ▁gave ▁battle ▁at ▁Col esh ill , ▁but ▁O w ain ▁was ▁vict orious . ▁ ▁War ▁with ▁King ▁Henry ▁II ▁ ▁All ▁went ▁well ▁until ▁the ▁acc ession ▁of ▁King ▁Henry ▁II ▁of ▁England ▁in ▁ 1 1 5 4 . ▁Henry ▁inv aded ▁G w yn ed d ▁in ▁ 1 1 5 7 ▁with ▁the ▁support ▁of ▁Mad og ▁ap ▁M ared ud d ▁of ▁Pow ys ▁and ▁O w ain ' s ▁brother ▁Cad wal adr . ▁The ▁invasion ▁met ▁with ▁ ▁mixed ▁fort unes . ▁Henry ' s ▁forces ▁rav aged ▁eastern