Soon a variety of claimants were abroad, including William of Ypres, son of Charles's uncle and popularly thought to be complicit in the murder, Thierry of Alsace, the son of Gertrude of Flanders, Duchess of Lorraine, Arnold of Denmark, nephew of Charles the Good, who seized Saint-Omer.
Louis had his own candidate in mind and marched into Flanders with an army and urged the barons to elect William Clito, son of Robert Curthose, who had been disinherited of Normandy by his uncle Henry I of England, as their new Count.