The Battle of Vlaardingen (1018)
The (First) Battle of Vlaardingen was fought on 29 July 1018 between troops of the Holy Roman Empire and West Frisia (which would later become known as the County of Holland).
1018-07-23 17:04:17 - BazBattles
As a result of a trade dispute, Emperor Henry II sent an army towards West Frisia to subdue the rebellious Count Dirk III.
However, the Imperial army was decisively defeated and fled in panic.