Analysis of information sources in references of the Wikipedia article "Konstantin Dejanović" in English language version.
"Constantine" was a good name, Manuel and Helena believed; for one thing, it was the name of Helena's father.
Kostadin – beg Kostadin historijsko lice; sin je Dušanova velikaša Dejana, a bio je gospodar sjeveroistočne Makedonije. Poslije bitke na Marici 1371. postao je turski vazal; zato ga pjesma naziva beg Kostadin
