Rodulf Haraldsson

Rodulf Haraldsson (died June 873), sometimes Rudolf, from Old Norse Hróðulfr, was a Viking leader who raided the British Isles, West Francia, Frisia, and Lotharingia in the 860s and 870s. He was a son of Harald the Younger and thus a nephew of Rorik of Dorestad, and a relative of both Harald Klak and Godfrid Haraldsson, but he was "the black sheep of the family". He was baptised, but under what circumstances is unknown.

In 864 Rodulf led a band of mercenaries (locarii) into Lotharingia to extract a payment from Lothair II, who exacted four denarii from every mansus (landholding) in the kingdom, as well as large number of cattle and much flour, wine, and beer.

The word translated "cider" or "beer", sicera, is derived from ancient Hebrew and can refer to any alcoholic beverage that is not wine. It has been translated sherbet. The account of the Annales Bertiniani is more brief: