Notes on Surnames:
Norman Names:- Fitz (son of), as in "Walter FitzGerald" (Walter son of Gerald) , is indexed under "F".
Welsh names:- ap (son of) and ferch (daughter of) {pronoucned "verch"} are indexed under the first name of the individual. For example "Ankaret ferch Maredudd"
[Ankaret daughter of Maredudd] is indexed under "A".