Rubuta ci gaba don wannan sakin layi - Mahaifinsa, "sevastokrator" Dejan, babban mutum ne a cikin hidimar Sarkin sarakuna Dušan, kuma kuma surukin Sarkin ta hanyar aurensa da Teodora-Evdokija. Dejan ya riƙe "župe" (gundumomi) na Žegligovo da Preševo a ƙarƙashin Dušan, kuma daga baya ya sami taken "despot" a lokacin mulkin ɗan Dušan, Sarkin sarakuna Uroš V, lokacin da aka nada shi gwamnatin Upper Struma tare da Velbužd, bayan mutuwar "despot" mai iko Jovan Oliver. Bayan mutuwar Dejan tsakanin 1358 da 1365, an ba da yawancin lardinsa ga Vlatko Paskačić, ban da gundumar farko ta Žegligovo da Preševo, waɗanda aka bar wa 'ya'yansa maza biyu, Jovan da Konstantin. 'Yan'uwan, waɗanda suka yi mulki tare, sun sami damar ninka girman lardin su yayin Faduwar Daular Serbia bayan mutuwar Sarkin sarakuna Uroš V, galibi zuwa kudu; ƙasashen da yanzu suka rufe daga Vranje da Preševo zuwa Radomir, a kudu zuwa Štip, Radovište da Strumica. A shekara ta 1373, shekaru biyu bayan mummunan yakin Maritsa
, 'yan uwan sun zama masu mulkin Ottoman Empire. Bayan mutuwar Jovan a shekara ta 1377, Konstantin ya ci gaba da mulki a ƙarƙashin mulkin Ottoman. Konstantin da maƙwabcinsa na lardin da kuma ɗan'uwansa Ottoman vassal, Yarima Marko, sun faɗi a yakin Rovine a 1395.