▁Russian ▁occupation ▁in ▁ 1 8 3 1 - 1 8 3 2 , ▁was ▁the ▁first ▁organ ic ▁law ▁res emb ling ▁a ▁constitution ▁ever ▁awarded ▁to ▁the ▁Dan ub ian ▁Princi pal ities . ▁It ▁remained ▁in ▁place ▁until ▁ 1 8 5 8 , ▁when ▁the ▁Crime an ▁War ▁removed ▁the ▁two ▁countries ▁from ▁Russian ▁influence ▁and ▁confirmed ▁the ▁rule ▁by ▁several ▁European ▁powers ▁first ▁established ▁by ▁the ▁Tre aty ▁of ▁Paris ; ▁the ▁Paris ▁Convention ▁of ▁ 1 8 5 8 ▁remained ▁the ▁gover ning ▁document ▁following ▁the ▁election ▁of ▁Alexand ru ▁Io an ▁Cu za ▁as ▁Dom n itor ▁( r uling ▁prince ) ▁over ▁the ▁un ited ▁countries ▁( 1 8 5 9 ), ▁but ▁was ▁replaced ▁by ▁Cu za ' s ▁own ▁organ ic ▁law , ▁entitled ▁Stat ut ul ▁dez vol t ă tor ▁al ▁Con ven ţ iei ▁de ▁la ▁Paris ▁(" Stat ute ▁expand ing ▁the ▁Paris ▁Convention "), ▁in ▁ 1 8 6 4 . ▁Although ▁the ▁newly ▁mint ed ▁state ▁was ▁nomin ally ▁still ▁a ▁v ass al ▁of ▁the ▁Ott oman ▁Empire , ▁it ▁only ▁acknowled ged ▁the ▁su zer ain ty ▁of ▁the ▁Sub lime ▁Por te ▁in ▁a ▁formal ▁way . ▁ ▁The ▁first ▁constitution ▁of ▁the ▁Roman ian ▁United ▁Princi pal ities ▁was ▁adopted ▁ 1 ▁July ▁ 1 8 6 6 . ▁It ▁was ▁retained ▁after ▁Roman ia ▁became ▁a ▁kingdom ▁in ▁ 1 8 7 8 . ▁After ▁the ▁extension ▁of ▁national ▁territory ▁in ▁