C T Clay in his “Early Yorkshire Families” says that there is an account of this family with chart pedigree in Y.A.J., xlii, 41-51 - and Clay hased his account on that article.

Geo Wrottesley in his Pedigrees from the Plea Rolls, p. 218, gives this line from a Eudo:

Eudo de Lungvilers, living temp Ed I
|
Eudo
|
John
|
Margaret
|__________________________________
|                                                      |
John                                          Robert
|                                                   |
John ob.s.p.                               Robert
                                                    |
                                              Robert Nevylle,
                                              the plaintiff
___________________