Battle of Pliska Part of the Byzantine–Bulgarian Wars Ruins of Pliska Date 26 July 811 Location Pliska and Vărbitsa Pass Result Decisive Bulgarian victory Belligerents Bulgarian Empire Byzantine Empire Commanders and leaders Krum Nikephoros I † Strength 62,000[1] (uncertain) 60,000–80,000 (estimated)[2][3] Casualties and losses Unknown almost the whole army, including the emperor