"Count of West Frisia supported byFrisian settlersfrom the area of Vlaardingen" . "probably circa 1000" . "probably a few hundred" . . "many" . "Decisive victory for West Frisia (Holland)" . . "For the later battle, see Battle of Vlaardingen (1351).The Battle of Vlaardingen was fought on 29 July 1018. The German emperor sent an army towards western Frisia to subdue the rebellious Count Dirk III."@en . "Imperial army sent byEmperor Henry II, troops supplied by:Duke Godfrey II of Lower Lorraineand the bishops ofUtrecht,Li\u00E8ge,Cambrai, andCologne." . "1018-07-29Z"^^ . . "The Battle of Vlaardingen"@en . . . .