Most of his works deal with medieval Serbia, especially the Serbian empire and the Battle of Kosovo.

The region was the centre of the Serbian empire until the mid-14th century, and Serbians regard Kosovo as the birthplace of their state.

In the 12th century Kosovo was the heart of the Serbian empire, until Turkish triumph at the pivotal 1389 Battle of Kosovo ushered in 500 years of Ottoman rule.

The battle of Zileheroum resembles the Battle of Kosovo and the Battle of Maritsa and rebelled nobility are similar of those who divided the Serbian empire.

That it was incorporated into the Serbian empire in the late 12th century.

Four medieval buildings were badly harmed in the town, the jewel of the short-lived Serbian empire of the 14th century.

Raška, whose name survives in a small town at the confluence of the Raška and Ibar rivers, was the nucleus from which grew the great medieval Serbian empire.

The first allowed Ragusa to take control of the Pelješac peninsula on payment of an annual tribute to Tsar Dušan, ruler of the Serbian empire.

Serbian nationalist thinkers dreamed of recreating, first a Serbian state and then perhaps a Serbian empire.

Although Dusan would die along with his dream of a Serbian Greek empire in 1355, Byzantium would still face a powerful Turkish state across the Sea of Marmara.