I was able to locate from a publication titled MISCELLANEA GENEALOGICA et HERALDICA Vol. IV (full view of this text using google book search online is available), page 98-100, a family tree further corroborating the Fitzalan-Coleridge connection. There are still a few discrepancies, but this text offers detailed evidence (page 98) in a paragraph/footnote describing, in addition to other items of interest, an "Authentick Booke of pedigrees remaining in the Office of Armes marked on the cover ... of William Arundell & Christian [Christina] his wife & of Ralph Arundell theyr son & Julyan [Juliana] his wife and of Alice theyr da and heyre that maried Bartholmew Collingridge contractedly called Colridge...", etc, etc, etc. Thought this would be of further assistance/interest to us all in piecing this together. please see below for copies of this family tree.