Battle of Marcellae (756)

Battle of Marcellae
Part of the Byzantine–Bulgarian wars
Date 756 Location Markeli, near Karnobat, Bulgaria Result Byzantine victory
Belligerents
Bulgarian Empire	Byzantine Empire
Commanders and leaders
Vinekh	Constantine V
Strength
Unknown	Unknown
Casualties and losses
Unknown	Unknown

Coordinates: 42°38′15.48″N 26°53′47.48″E / 42.6376333°N 26.8965222°E / 42.6376333; 26.8965222

The battle of Marcellae (Bulgarian: Битката при Маркели, Greek: Μάχη των Μαρκελλών) took place in 756 between the armies of the First Bulgarian Empire and the Byzantine Empire at Markeli, near the town of Karnobat in south eastern Bulgaria. The result was a Byzantine victory.

In 755, the long peace between Bulgaria and the Byzantine Empire came to an end. This was mainly because, after significant victories over the Arabs, the Byzantine Emperor Constantine V began to fortify his border with Bulgaria. To this aim he resettled heretics from Armenia and Syria in Thrace. Khan Kormisosh took those actions, and the construction of a new fortress along the border, as a breach of the Byzantine–Bulgarian Treaty of 716, signed by Tervel. The Bulgarian ruler sent envoys to ask for tribute for the new fortresses. After the refusal of the Byzantine Emperor, the Bulgarian army invaded Thrace. Looting everything on their way, the Bulgarians reached the outskirts of Constantinople, where they were engaged and defeated by Byzantine troops.

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