Clive Kenyon writes:
https://archive.org/stream/chartularyofstjo01pont#page/n5/mode/2up
GIVES THE DE VESCI LINEAGE AS:
"Ivo (brother of Robert) married Beatrice Fitz Eustace and had issue William de Vesci who in turn had a son named Eustace
It is written that Beatrice died in childbirth and Ivo secondly married Agnes, daughter of Nigel the Constable and has issue Richard de Vesci."
MY NOTES:
There does not appear to be any mention of a daughter who could have married into the Fitz Swain family. On the same note the lineage of the Fit Swain family is equally mysterious. I can find no mention any where of Ailric's (other spellings are available) parents and there is a whole mystery about the whole thing.
According to Domesday records 'Ailric of Cawthorne' and Suuein were large landowners pre-Conquest mainly in lands connected to the former Kings Edward and Harold and also Edwards other sons and predecessors. This suggests that Ailric & Suuein were adults in 1066.
The descendants of Ailric are Swein Fitz Alric > Adam Fitz Swain > Maude / Matilda & Clementia Fitz Adam. If we take Adam as granting lands to Monk Bretton Priory around 1155 just before his death around 1159 that puts his dob around 1100. Follow this down the line gives Swein a potential dob in the 1070's and Ailric around 1040's. That suggests that the Suuein of Domesday, neighbour of Ailric was not Ailric's son.
Both these Danish land owners succeeded to control vast areas of land previously owned by Edward and his family and yet there appears to be no mention in the AS Chronicles of their origins or loyalties.
I would love to know where the information suggesting Ailric's pedigree came from.
Regards,