Crisell Family Tree.ged
People: David Crisell, George Crisell, Sarah Owston and 49 others.
Picot Lascelles Source Notes and Queries.pdf
This source states that Sir Humphrey was the son of Picot de Lascelles; other son's are mentioned as well.
People: Sir Humphrey de Lascelles of Hinderskelfe Castle, kt and Picot de Lascelles, I, High Sheriff of Cambridgeshire
Herve Avenel doc.pdf
This document shows that the de Say family descended from the family of "Avenel".
People: Hervé Avenel, I, Hervé Avenel, II, Sigemberg des-Biarz Avenel and 3 others.