 The actual title of count Dirk I was ‘count in Frisia’.Dirk is thought to be a son of Gerulf II, the preceding ‘count in Frisia’, who is named by some sources as one of the counts who assassinated their Viking overlord Godfrid ‘the Sea King’ at a place named Herespich (modern Spijk) in 885.Regarding Dirk I, almost nothing is known of his life, a situation further clouded by the present-day hypothesis that he had a son, Dirk (numbered Dirk I bis, to avoid confusion with the already established numbering), who succeeded him instead of the traditional view that he was succeeded by his supposed son Dirk II.