Serbian nobleman

In the medieval Serbian states, the privileged class consisted of nobility and clergy, distinguished from commoners, part of the feudal society. The Serbian nobility (vlastela, sing. vlastelin) were roughly grouped into "magnates" (velikaši, velmoža), the upper stratum, and the lesser nobility (vlasteličići). Serbia followed the government model established by the Byzantine Empire.

The nobility possessed hereditary allodial estates, which were worked by dependent sebri, the equivalent of Byzantine paroikoi; peasants owing labour services, formally bound by decree. The nobility was obliged to serve the monarch in war.

The nobility (vlastela) of Serbia in the Middle Ages is roughly divided into magnates (velikaši), nobility (vlastela) and petty noblemen (vlasteličići). Sometimes, the division is made between vlastela (including "great" and "small" ones) and vlasteličići, the petty nobility. The lower-half social class, commoners, were the sebri (себри).

The Serbs at that time were organized into župe (sing. župa), a confederation of village communities (roughly the equivalent of a county), headed by a local župan (a magistrate or governor); the governorship was hereditary, and the župan reported to the Serbian prince, whom they were obliged to aid in war.

According to Fine Jr.: Bosnia, Zahumlje and Rascia were never incorporated into an integrated state with Duklja (1043–1101); each principality had its own nobility and institutions, simply requiring a member of the royal family to rule as Prince or Duke. After Constantine Bodin died, the principalities seceded from Duklja, and Vukan became the most powerful Serb ruler, as Grand Prince. Subordinate to the ruler were local counts who seem to have been more or less autonomous in the internal affairs of their counties, but who swore loyalty and were obliged to support in war. It seems that the counts were hereditary holders of their counties, holding their land before Duklja annexed Rascia.

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