Waudbert V, count of Ponthieu

A Genealogical and Heraldic History of the Landed Gentry, John Burke. p. 320 https://books.google.com/books?id=VxdVAAAAcAAJ&pg=PA320&lpg=PA320&d...

"The house of the Sovereign Counts de Ponthieu of the first race, which proceeded the ancient Sires or Counts de Vismes, and are presumed to be of the blood royal. M. de Fournier, author of A History of the Counts of Ponthieu, proves Angilbert, Comte de Paris, descended from Pharamond*, founder of the French monarchy, from Alcaireus, son of Ragnacaireus, King of Cambray, Amiens, Mons, etc. and brother of King Clovis, to have been the ancestor of this house."

• Pharamond is designated on geni as a fictitious person.

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http://fmg.ac/Projects/MedLands/NORTHERN%20FRANCE.htm#_Toc414122974 shows no record of any Counts of Ponthieu before 940 CE.

The area around Ponthieu, which extended approximately from the river Canche in the north to the river Somme in the south, was conquered by Arnoul I Count of Flanders in [940]. It developed into a separate county in the early 11th century, based around territory which was granted by Hugues "Capet" King of France to Hugues, avocat de Saint-Riquier, who had married the king's daughter some time in the 980s. The counts were vassals of the Capetian kings. The county was inherited by the Norman family of Bellême/Montgommery in the late 11th century, and by the family of the counts of Dammartin in the early 1220s. A disputed inheritance resulted in the county passing into English control in 1281.

historical [modern] place name:

Lomme, Kingdom of Austrasia [Lomme, Lille, Nord, Nord-Pas-de-Calais, France]

https://en.wikipedia.org/wiki/Austrasia

"Austrasia was the original territory of the Frankish tribes prior to their unification under Clovis I, centred on the Middle Rhine and the Moselle. It became a separate kingdom ruled under Sigebert I within the Frankish Empire in 567, and it eventually lost its territorial character in the Carolingian Empire in the 8th century."

https://www.google.com/maps/place/Lomme,+Lille,+France/@50.6432683,...

"Lomme was a town in the Nord département of northern France. It was absorbed as a commune associée by the city of Lille in 2000."