The Bulgarian Eparchy of Saint John XXIII of Sofia is the fourth, so far last and sole jurisdiction, covering Bulgaria, of the Bulgarian Greek Catholic Church.
Its cathedral episcopal see is the Cathedral of the Dormition, in Bulgaria's capital Sofia, which also has a Latin Catholic diocesan see.
Wikipedia https://en.wikipedia.org/wiki/Bulgarian_Greek_Catholic_Eparchy_of_Sofia
Official Website http://www.kae-bg.org/
Coordinates 42°41'27.806" N 23°18'47.393" E