For centuries, Hungary and Bulgaria fought a brutal, shifting war for Balkan dominance.
From the 9th to the 14th century, the First and Second Bulgarian Empires clashed repeatedly with the Magyar tribes and the Kingdom of Hungary. These conflicts were not merely territorial disputes but a complex struggle for control over key fortresses, salt mines, and strategic river routes across the Carpathian Basin.
The rivalry ignited in the late 9th century when the Byzantine Empire enlisted Hungarian forces to pressure the First Bulgarian Empire. Simeon I of Bulgaria countered by maneuvering the Pechenegs to strike the Hungarians from the east. This strategic alliance forced the Hungarians into a massive withdrawal, ultimately leading to their settlement in the Carpathian Basin. By the 10th century, the conflict intensified as Hungarian leaders, known as gyulas, sought to seize valuable Bulgarian assets, including southern Transylvania’s gold deposits and salt mines.
Following the re-establishment of the Bulgarian Empire in 1185, the two states engaged in a series of protracted wars over provinces such as Belgrade, Braničevo, Vidin, and Severin. These struggles were often exacerbated by internal political instability. For instance, in the early 13th century, Tsar Kaloyan leveraged a Hungarian civil war between King Emeric and his brother Andrew to capture strategic fortresses. Later, in 1231, Duke Béla of Hungary established the Banate of Severin, further entrenching Hungarian influence in the region despite conflicting historiographical accounts regarding the exact timing and success of these campaigns.
By the mid-13th century, the conflict became deeply intertwined with dynastic ambitions. King Béla IV even claimed the title of King of Bulgaria after forcing Tsar Michael II Asen into suzerainty in 1255. However, this period was marked by shifting loyalties, such as the actions of Despot Jacob Svetoslav, who navigated between Hungarian and Bulgarian allegiance based on the immediate threats from Byzantine forces or internal Hungarian strife. By the late 13th century, feudal anarchy within the Kingdom of Hungary eventually led to a decline in sustained foreign policy toward Bulgaria, effectively winding down the long-standing military engagement between the two powers.
Source: Bulgarian–Hungarian wars
