Non-Slavic people who participated in ethnogenesis (who are absorbed by Slavs in the middle age) of Herzegovinian, Krajina and other Serbs who are connected with Herzegovina are Mataruge (E-A18844), Kriči (J2b-M205>Y22066), some unidentified R1b-U152 tribe from East Herzegovina etc.
Mataruge were not Albanian tribe like Albo mytomans wrote (
https://en.wikipedia.org/wiki/Mataruge), their y dna doesn't exist in Albos and in župa Vrm near Trebinje where Mataruge are recorded in the middle age Albos never lived
https://www.yfull.com/tree/E-A18844/
In 14th century Mataruge had Slavic names: Bilko father Nikoje (1389), Bijeloje father Bogdan (1389), Bogavče father Desimir (1368), Budoš father Mirko (1389), Vitoje father Kodradin (1389), Vladislav father Kučma (1389), Vladoje (1318), Vukota father Stajko (1389) etc.
https://hr.wikipedia.org/wiki/Mataru...aruga_u_14._st
Recently is discovered that Serbian families Crnomarković and Milaš from Vrlika area in Dalmatia belong to Mataruge clan by y dna, Milaši are famous due to Nikodim Milaš
https://en.wikipedia.org/wiki/Nikodim_Milaš
Kriči are natives of Durmitor mount in Old Herzegovina
https://en.wikipedia.org/wiki/Kriči