▁Prin ces . ▁ ▁Ag h ast ▁at ▁the ▁fact ▁that ▁his ▁sons ▁were ▁willing ▁to ▁kill ▁each ▁other ▁for ▁the ▁crown , ▁and ▁psych olog ically ▁exha usted ▁from ▁the ▁death ▁of ▁his ▁second ▁wife , ▁King ▁T ae jo ▁ab dic ated ▁and ▁immediately ▁crown ed ▁his ▁second ▁son ▁Y i ▁Bang g wa ▁as ▁King ▁Je ong j ong . ▁One ▁of ▁King ▁Je ong j ong ' s ▁first ▁acts ▁as ▁monarch ▁was ▁to ▁revert ▁the ▁capital ▁to ▁Ka es ong , ▁where ▁he ▁is ▁believed ▁to ▁have ▁been ▁consider ably ▁more ▁comfortable , ▁away ▁from ▁the ▁to xic ▁power ▁str ife . ▁Yet ▁Y i ▁Bang won ▁retained ▁real ▁power ▁and ▁was ▁soon ▁in ▁conflict ▁with ▁his ▁dis gr unt led ▁older ▁brother , ▁Y i ▁Bang gan , ▁who ▁also ▁year ned ▁for ▁power . ▁In ▁ 1 4 0 0 , ▁the ▁t ensions ▁between ▁Y i ▁Bang won ' s ▁fa ction ▁and ▁Y i ▁Bang gan ' s ▁camp ▁es cal ated ▁into ▁an ▁all - out ▁conflict ▁that ▁came ▁to ▁be ▁known ▁as ▁the ▁Second ▁Str ife ▁of ▁Prin ces . ▁In ▁the ▁after math ▁of ▁the ▁struggle , ▁the ▁defeated ▁Y i ▁Bang gan ▁was ▁ex iled ▁to ▁D os an ▁while ▁his ▁supp or ters ▁were ▁executed . ▁Thor ough ly ▁int im id ated , ▁King ▁Je ong j ong ▁immediately ▁inv ested ▁Y i ▁Bang won ▁as ▁he ir ▁pres um pt ive ▁and ▁volunt arily ▁ab dic ated