This era is, moreover, marked by the inauguration of that long series of coronations which helped to spread the popularity of the Champagne wines throughout France by the agency of the nobles and prelates taking part in the ceremony. Sumptuous festivities marked the coronation of Charlemagne's son Louis in 816; and the officiating Archbishop Ebbon may have helped to furnish the feast with some of the produce from the vineyard he had planted at Mont Ebbon, generally identified with the existing Montebon, near Mardeuil. It is of this vineyard that Pardulus, Bishop of Laon, speaks in a letter addressed by him to Ebbon's successor, the virtuous Hincmar, who assumed the crozier in 845, proffering him counsels as to the best method of sustaining his failing health. After telling him to avoid eating fish on the same day that it is caught, insisting that salted meat is more wholesome than fresh, and recommending bacon and beans cooked in fat as an excellent digestive, he proceeds: 'You must make use of a wine which is neither too strong nor too weak--prefer, to those produced on the summit of the mountain or the bottom of the valley, one that is grown on the slopes of the hills, as towards Epernay, at Mont Ebbon; towards Chaumuzy, at Rouvesy; towards Reims, at Mersy and Chaumery.' The Champagne vineyards suffered grievously from the internal convulsions which marked the period when the sceptre of France was swayed by the feeble hands of the dregs of the Carlovingian race. The Normans, who threatened Reims and sacked Epernay in 882, swept over them like devouring locusts; and their annals during the following century are written in letters of blood and flame.