The Serbian author explains that in a transaction from 1368, a person named Tvrtko Kobilić (Cobillich or Kopiliq in Albanian) pays a sum to a certain Radovan Malo. The other person belongs to the Obiliq family, where he explains that he is an ancestor of Milosh, the hero of Kosovo. Most likely, both were Albanians with Serbian names. This invoice also explains once again that Miloš Obilić is of Albanian origin.

“Tvrtko Kobilić (Cobillich) from Šumet undertakes to pay a debt to Radovan Malo, a goldsmith in Dubrovnik, and according to a note dated June 6, 1368”