:And according to your logic this would mean Tvrtko completely "invented" his title in 1390 when he crowned himself king of "Serbia". Now, excuse me my "excellent and well-educated historian", but you're besides the point. Tvrtko did not crown himself king of Serbs, he crowned himself king of Serbia. The clearest indication of this are the numerous documents that list Tvrtko's title in latin between 1377 and 1390. They are not "modifications", they are exact translations. And they all unanimously and without fail list him as king of "Serbia" and not "Serbs". You can try to go off on tangents, deny evidence, and try to work around this, but the simple fact cannot be changed. Considering that the word "Srbljem" in the original title has a two-fold meaning, direct translations of the title by Tvrtko's own scriveners clearly show that the word in question is not an ethnic designation. Furthermore, yet more proof is the fact that after Tvrtko crowned himself "King of Srbljem", Lazar followed this by crowning himself "King of Serbia". This is a simple fact, widely accepted even by Serb historians. A google search for "Lazar 'prince of serbs'" finds nothing, whereas a search of "Lazar 'prince of serbia'" conveniently comes up with a link to this sebian nationalist site. Even Srpska mreza uses one of the numerous professional historical texts that clearly identify Tvrtko as "King of Serbia" and Lazar as "Prince of Serbia".