▁merged ▁into ▁the ▁Te ut onic ▁Order ▁of ▁Pr uss ia ▁in ▁ 1 2 3 7 . ▁On ▁June ▁ 7 , ▁ 1 2 3 8 , ▁the ▁Te ut onic ▁Order ▁concluded ▁the ▁Tre aty ▁of ▁St ens by ▁at ▁a ▁royal ▁for tr ess ▁in ▁the ▁south ▁of ▁Zealand ▁with ▁the ▁Dan ish ▁king , ▁Val dem ar ▁II . ▁Under ▁the ▁treat y , ▁Jer w ia ▁stayed ▁part ▁of ▁the ▁Or den staat , ▁while ▁Har ria ▁and ▁Vir onia ▁were ▁c eded ▁back ▁to ▁King ▁of ▁Den mark ▁as ▁his ▁direct ▁domin ion , ▁the ▁Duch y ▁of ▁Est onia . ▁The ▁first ▁Duke ▁of ▁Est onia ▁had ▁been ▁appointed ▁by ▁Val dem ar ▁II ▁in ▁ 1 2 2 0 , ▁and ▁the ▁title ▁was ▁now ▁res umed ▁by ▁the ▁k ings ▁of ▁Den mark ▁starting ▁in ▁ 1 2 6 9 . ▁ ▁Due ▁to ▁its ▁status ▁as ▁the ▁king ' s ▁personal ▁possession , ▁the ▁Duch y ▁of ▁Est onia ▁was ▁included ▁in ▁a ▁nation wide ▁Dan ish ▁tax ation ▁list ▁Liber ▁Census ▁D ani æ ▁() ▁( 1 2 2 0 – 4 1 ), ▁an ▁important ▁ge ographic ▁and ▁historic ▁document . ▁The ▁list ▁contains ▁about ▁ 5 0 0 ▁Est onian ▁place ▁names ▁and ▁the ▁names ▁of ▁ 1 1 4 ▁local ▁v ass als . ▁ ▁The ▁capital ▁of ▁Dan ish ▁Est onia ▁was ▁Re val ▁( T all inn ), ▁founded ▁at ▁the ▁place ▁of ▁Lind an ise