Professor Vinogradoff[183] has suggested that the evidence of Norse and Icelandic wergelds seems to point to an original organised group of agnates who were bauga men and formed the kernel of the kindred liable for wergeld as contrasted with after additions of relations on both paternal and maternal sides and others more or less nearly concerned. The Cymric precedent would lead us to expect to find thrallborn sons as well as legitimate sons among the bauga men without any special mention as such. Under Christian influences they may have been excluded from this group to find a place ultimately, sometimes with special mention, in the upnám group. It may or may not have been so, according to the stage of moral growth arrived at in the particular case of this tribe or that, at the particular period in question. Hence, although under Norse custom the amount of the normal wergeld of the hauld may have been constant, the way in which it was divided and the group responsible for its payment may well have varied from time to time and in different districts. It has already been noticed that even under the later methods of awarding as wergeld an even number of gold marks, both the Gulathing and the Frostathing laws, in the case of the award of 6 marks of gold, draw a line, the one at 18 and 27 marks and the other at 20 and 30 marks, as though these amounts had a strong traditional sanction. Even in the case of the lower awards the scheme of division being the same with proportionately lessened figures, this portion of the wergeld was always divided into two thirds of bauga payments and one third of nefgildi or upnám payments. This seems to be strong evidence that, although the persons forming the groups may have differed, the two groups formed originally an inner and an outer kernel of the wergeld proper, the additions to which may fairly be regarded as sakaukar. The repetition of evidence in both laws that the bauga payment of two thirds was followed by another third of nefgildi or upnám payments, when connected with the further fact that the two together made an amount which was, at the value of the cow stated in the laws, equated with 96 or 100 cows, seems to confirm the hypothesis that in this amount we have the normal wergeld of the hauld. To Professor Vinogradoff’s suggestion that the bauga payments may have formed an original inner kernel of the wergeld we may therefore perhaps add that the nefgildi and upnám payments may have formed an outer shell of the kernel, and that both may have been included in the original normal wergeld of 96 or 100 cows. [Sidenote: Wergelds of the several grades of social rank.]