Where I come from there is no such thing as a "middle name". Everyone has at least: first name, mother's maiden name and father's last name.
Ah... I see now! That sounds like Spain or Portugal, or is it somewhere more exotic?
I've never heard of that process being followed in the English-speaking world. Wesh surnames were patronymic until fairly recently, but the exacting demands of English bureaucratic overlords changed that and we now have straightforward inherited surnames like most other Europeans (I know the Icelanders are an exception, they still use the patronymic for boys and whatever the female equivalent is for girls). So now we get many strange mutated Welsh surnames like "Price", which are actually from "Ap Rhys" = Son of Rhys (father's first name).
My surname is "Worgan", which I'm semi-reliably informed comes from some ancestor of mine having the unlikely first name "Worgan" or more likely and tongue-twistingly "Gworgan"!
My name is name combinaton is way too uncommon, that you guys will never find out.
Freude, schöner Götterfunken Tochter aus Elysium, Wir betreten feuertrunken, Himmlische, dein Heiligtum! Deine Zauber binden wieder Was die Mode streng geteilt; Alle Menschen werden Brüder, Wo dein sanfter Flügel weilt.