For the most part, back in the early years individuals did not have a surname. The son of David became Davidson. William Longpre and other members of the royal court had several towns named after them.There were few royal members compared to the large number from the working class.Many of the people from the towns and villages were given the aka (dit)name of their village.As examples they were refered to as: Guillaum de Longpre or the butcher de Longpre, etc. As a result I would say that the vast majority of Longpre were from the working class and not from royalty.
Like I said earlier, my Ancestor Jacque Manseau was not a Manseau till after he left France.He then took over that surname because he came from LaMans. At that point he singned his name Jacques Manseau.
I don't care where our Longpre ancestor comes from, I believe that he was not a descendant of William de Longespee.
I am the 35th great granddaughter of Charlemagne King-of-the-Franks-&-Emperor. That line was proven. Not one of his children had a surname. They were King of someplace or Prince of another place. His father was King-of-the-Franks, Pepin III "The Short". Does that mean that my ancestor Guillaume Pepin (whose origin is also unknown) is a descendant of King-of-the-Franks, Pepin III "The Short"? No one could convince me of that either.
Out of respect for you getting in touch with me, I responded to your messages.I am now finished with this conversation.I will no longer respond to your Longpre's origin e-mails. Salut, Janet