Guillaume  (Hainaut) Hainault

Guillaume (Hainaut) Hainault (abt. 1286 - 1337)

Privacy Level: Open (White)
Guillaume (Guillaume III) "Willem, le bon" Hainault formerly Hainaut aka van Holland, d'Avesnes
Born about in Avesnes, Hainautmap
Ancestors ancestors
Husband of — married in Chauny, Picardie, Francemap
Descendants descendants
Died in Valenciennesmap
Hainaut-43 created 16 Oct 2013 | Last modified | Last edit: 23 May 2017
14:48: Darlene (Athey) Athey-Hill edited the Biography and Status Indicators for Guillaume III (Hainaut) Hainault. (post merge cleanup) [Thank Darlene for this | 1 thank-you received]
This page has been accessed 3,784 times.

GUILLAUME (or WILLEM) III le bon, [Count of Hainault, Holland and Zeeland, lord of Friesland, 3rd but eldest surviving son and heir, born probably in 1286. He married by contract dated at Chauny (Aisne) 19 May 1305 JEANNE OF VALOIS, daughter of Charles of France, Chev., Count of Valois, Alencon, Chartres, and Perche, titular King of Aragon and Valencia, Count Barcclona, and, in right of his 1st wife, Count of Anjou and Maine, by his 1st wife, Marguerite, daughter of Charles II, King of Jerusalem and Sicily, Duke of Apulia, Prince of Capua, Salerno, and Taerento, Count of Anjou, Provence, and Forcalquier [see VALOIS 11 for her ancestry]. She was born about 1294. They had three sons, Jean (or Jan) (died young), Guillaume (or Willem) (IV) [Count of Hainault and Holland], and Louis (or Lodewijk) (died young), and six daughters Sibylla, Marguerite (or Margaretha), PHILIPPE, Jeanne (or Johanna), Agnes, and Isabelle (or Elisabeth). .... GUILLAUME III, Count of Hainault, Holland, and Zeeland, died at Valenciennes (Nord) 7 (or 8) June 1337, and buried there in the Church of the Franciscans. He left a will dated 22 Feb. 1336, codicil dated 30 May 1337. His widow, Jeanne, became a num at Fontenelles Abbey near Valenciennes in 1337, before 8 Nov. JEANNE OF VALOIS, former Countess of Hainault and Holland, died at Fontenelles Abbey 7 March 1352, and was buried there.



from 1304:

  • William III, Count of Avesnes
  • William III, Count of Holland
  • William II, Count of Zeeland


m. Jeanne de Valois (Joan of Valois) before 1311. Issue: 8:
  1. William II, Count of Hainaut (1307-1345)
  2. John (died 1316)
  3. Margaret II, Countess of Hainaut (1311-1356), married Louis IV, Holy Roman Emperor
  4. Philippa of Hainault (1311-1369), married King Edward III of England
  5. Agnes (died 1327)
  6. Joanna of Hainaut (1315-1374), married William V, Duke of Jülich
  7. Isabelle of Hainaut (1323-1361), married Robert of Namur
  8. Louis (1325-1328)
  • Illegitimate child of William, by and unknown mistress:
i. ELIZABETH OF HOLLAND, nun at Stratford le Bow Abbey, Middlesex. She left a will dated 23 Sept. 1375, proved 25 Sept. 1375.


  • 7 children with Trude Boudijnsdotter van de Poule and other mistresses


  • Royal Ancestry by Douglas Richardson Vol. III, page 190
  • Royal Ancestry by Douglas Richardson Vol. II, page 23

Royal Ancestry by Douglas Richardson Vol. V, page 232

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Images: 2
Guillaume III van Holland Image 1
Guillaume III van Holland Image 1

Guillaume III d'Avesnes Image 1
Guillaume III d'Avesnes Image 1

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On 22 May 2017 at 10:23 GMT Rev Daniel Washburn Jones wrote:

De Avesnes-64 and Hainaut-43 appear to represent the same person because: same person, please merge ... Hainaut is the correct LNAB per MedLands - GUILLAUME de Hainaut. A leader needs to fix the privacy for De Avesnes-64 in order to complete this merge.

Thank you.

On 21 May 2017 at 17:32 GMT Isabelle Rassinot wrote:

Hi Colin,

Could you add more details about this person, please? We are trying to identify he and his wife. Their identities are very similar to a couple who lived in the 13th century and it is causing confusion.

Thank you!

On 21 May 2017 at 17:29 GMT Isabelle Rassinot wrote:

Hainaut-43 and De Avesnes-64 do not represent the same person because: Since their wives are different (rejected merge), they can't be the same person.

On 21 May 2017 at 07:37 GMT Isabelle Rassinot wrote:

De Avesnes-64 and Hainaut-43 appear to represent the same person because: They are both Guillaume III de Hainaut (d'Avesnes) who married Jeanne de Valois - there's only one.

On 22 Aug 2015 at 11:37 GMT Roger Travis Jr. wrote:

Van Der Poel-104 and Hainaut-43 are not ready to be merged because: What documentation is there for Daniel van der Poel as his son?

On 7 May 2015 at 10:44 GMT John Atkinson wrote:

Avesnes-82 and Hainaut-43 are not ready to be merged because: Need to decide on the most appropriate LNAB

Guillaume III is 20 degrees from Kevin Bacon, 22 degrees from Cindy Lesure, 21 degrees from Bonnie Thornton and 18 degrees from Queen Elizabeth II Windsor on our single family tree. Login to find your connection.

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