Stephenson Family Tree » William de Fiennes (1240-1302)

Personal data William de Fiennes 


Household of William de Fiennes

(1) He is married to Blanche de Brienne.

They got married on February 21, 1266 at Marle, Picardie, France, he was 26 years old.


Child(ren):

  1. Margaret de Fiennes  ????-1333 
  2. Mahaut de Fiennes  1266-1298
  3. Robert de Fiennes  1273-1282
  4. Joan de Fiennes Briennes  ± 1273-± 1309 
  5. Yolande de Fiennes  1275-1323
  6. Agnes de Fiennes  1276-????
  7. Jean I de Fiennes  1278-1333
  8. Robert De FIENNES  ± 1282-????


(2) He is married to Blanche de Brienne.

They got married on February 21, 1266 at Marle, Picardie, France, he was 26 years old.


Child(ren):

  1. Margaret de Fiennes  ????-1333 
  2. Mahaut de Fiennes  1266-1298
  3. Robert de Fiennes  1273-1282
  4. Yolande de Fiennes  1275-1323
  5. Agnes de Fiennes  1276-????
  6. Jean I de Fiennes  1278-1333
  7. Robert De FIENNES  ± 1282-????


(3) He is married to Blanche de Brienne.

They got married on February 21, 1266 at Marle, Picardie, France, he was 26 years old.


Child(ren):

  1. Margaret de Fiennes  ????-1333 
  2. Mahaut de Fiennes  1266-1298
  3. Robert de Fiennes  1273-1282
  4. Yolande de Fiennes  1275-1323
  5. Agnes de Fiennes  1276-????
  6. Jean I de Fiennes  1278-1333
  7. Robert De FIENNES  ± 1282-????

Do you have supplementary information, corrections or questions with regards to William de Fiennes?
The author of this publication would love to hear from you!


Timeline William de Fiennes

  This functionality is only available in Javascript supporting browsers.
Click on the names for more info. Symbols used: grootouders grandparents   ouders parents   broers-zussen brothers/sisters   kinderen children

Ancestors (and descendant) of William de Fiennes


With Quick Search you can search by name, first name followed by a last name. You type in a few letters (at least 3) and a list of personal names within this publication will immediately appear. The more characters you enter the more specific the results. Click on a person's name to go to that person's page.

  • You can enter text in lowercase or uppercase.
  • If you are not sure about the first name or exact spelling, you can use an asterisk (*). Example: "*ornelis de b*r" finds both "cornelis de boer" and "kornelis de buur".
  • It is not possible to enter charachters outside the standard alphabet (so no diacritic characters like ö and é).

The data shown has no sources.

Historical events

Day of marriage February 21, 1266

Day of death July 11, 1302

Day of burial July 16, 1302



Same birth/death day

Source: Wikipedia


About the surname De Fiennes


The Stephenson Family Tree publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
Brian K. Stephenson , "Stephenson Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/stephenson-family-tree/I77480.php : accessed May 3, 2025), "William de Fiennes (1240-1302)".