Portal:Byzantine Empire/DYK/18

... that during the absence of Byzantine emperor Heraclius from Constantinople in 622–626, the patrician Bonus defended the city from a major Avar siege in July 626?
... that in the Battle of Lalakaon in 863 AD, three Byzantine armies, marching from different directions, converged on time to surround an Arab army?
...that in 1261, Caesar Alexios Strategopoulos reconquered Constantinople from the Latins, thereby restoring the Byzantine Empire?