Hrelja
Hrelja, also called Stefan Dragovol or Hrelja Ohmućević (died 27 December 1342), was a Serbian lord whose domain around Štip, and later Strumica, lay where Serbia, Bulgaria and Byzantium met. He served three Serbian kings, and in the 1320s led a Serbian detachment to help Andronikos II in a Byzantine civil war.
In 1334–1335 he rebuilt Rila Monastery's church and raised Hrelja's Tower, inscribed with Dušan's name. By the late 1330s he had broken away and ruled from Strumica, nominally under Byzantium. In the next civil war he backed John VI Kantakouzenos, who gave him Melnik and the title protosebastos.
In summer 1342 Kantakouzenos gave him up to win Serbian help: Hrelja acknowledged Dušan again and ceded Melnik. He became the monk Hariton and died at Rila that December, said by Bulgarian sources to have been killed on Dušan's orders.