On 6 July 900 twelve bishops from across northern France met in Rheims cathedral for the ordination of the new archbishop, Heriveus (900–22). His consecration followed the murder of the previous incumbent, Fulk (882–900), some nineteen days earlier. Fulk's death was a consequence of a complex and ongoing dispute between the archbishop and Baldwin, count of Flanders, for control of the important monastery of Saint-Vaast in Arras. The assembled bishops used that occasion to proclaim the excommunication of Fulk's assassins, named as Winemar, Everard and Ratrid, along with their accomplices. The words of the formula they used begin:

It continues with a set of very specific maledictions taken from Deuteronomy: they should be cursed in the city and in the field, in their barn and in their stores, in the fruit of their womb and of their lands, in the herds of their oxen and flocks of their sheep, in their entering and leaving. To these was added the injunction that, sharing the fate of the faithless and unfortunate Arius, their intestines should be poured down a privy. It spells out the condition of their sentence; they are to be cut off from all contact with other Christians and from all Christian services, especially those of the last rites and Christian burial: