https://archaeologydataservice.ac.uk/archiveDS/archiveDownload?t=ar...
On printed page 60, pdf Page 10, are mentioned the daughters of William Fitz Ralf (the seneschal!). Edelina married Hubert fits Ralph of Crich.
I can’t explain the list serv reference to Somerville, except if they’re mixing up first names, or if Somerville’s wife wasn’t a Boteler.