Guillaume de Montfort, also known as Guillaume of Hainaut, was a French nobleman of the end of the 10th century, the first Lord of

Montfort-l'Amaury Montfort-l'Amaury () is a commune in the Yvelines department in the Île-de-France region, north central France. It is located north of Rambouillet. The name comes from Amaury I de Montfort, the first ''seigneur'' (lord) of Montfort. Geogra ...

. He was succeeded as Lord of Montfort-l'Amaury by his son

Amaury I de Montfort Amaury I de Montfort (died ) was Lord of Montfort, son of Guillaume de Montfort of Hainaut, the first Lord of Montfort. The castle of Montfort l'Amaury, of which he started the construction, was completed by his son Simon I de Montfort, who succee ...

. Guillaume is possibly the son of

Amaury, Count of Valenciennes Amaury (Amulric) (died after 973), was a tenth century count with territory in Hainaut, possibly a Count of Valenciennes. He is known from very few records, and most that has been published about him is speculative. *One of the only records of ...

Bibliography

* * Lords of France

Guillaume Guillaume may refer to: People * Guillaume (given name), the French equivalent of William * Guillaume (surname) Other uses * Guillaume (crater) See also * '' Chanson de Guillaume'', an 11th or 12th century poem * Guillaume affair, a Cold War espi ...

10th-century births 11th-century deaths Year of birth unknown Year of death unknown

References

{{France-noble-stub