balkan "slavs" are the most mutted up people in europe, with sufficient thracian, greek, turkic, armenian, jewish and slavic strains. but definitely the most slavic thing about us is the language, and less so the blood. ironically romanians are the most blood-slavic of the south slavs, and they are the most ashamed of it. for the thracian connection, its is both very underrated by some, but also exaggerated by others. the fact is that atilla and the black plague killed off a majority of celtic blood in our region. there's a lot left, maybe even a plurality of our pool, but its a stretch to say we are thracians.
Bulgaria