Battle of Olšava

The Battle of Olšava was an engagement of Bohemian and Hungarian troops near the Olšava River along the frontier of the two realms in May 1116. The event started as a peaceful meeting between the young Stephen II of Hungary and Vladislaus I of Bohemia, according to Hungarian chronicles. The Czech Cosmas of Prague wrote that the Hungarians came to the border to provocate a war.