Last week marked the anniversary of one of the biggest battles in medieval European history. The Battle of Grunwald, 15 July 1410, was fought between the forces of the Kingdom of Poland and the Grand Duchy of Lithuania against the formidable Teutonic Knights. The clash is deemed a seminal episode in the epic historical saga of Poland and Lithuania, a dramatic instance when their resistance to the Teutonic incursion solidified their cultural identities and united the neighbouring realms for several centuries to come.