a mid-19th century house in Koprivshtitsa Koprivshtitsa   ( Bulgarian : Êîïðèâùèöà ; [ku.'priv.ʃti.ʦə] , from the Bulgarian word êîïðèâà , kopriva , meaning " nettle ") is a historic town in Sofia Province , central Bulgaria , lying on the Topolnitsa River among the Sredna Gora mountains. It was one