Mathieu de Montmorency, seigneur of Attichy

Copyright, Plagiarism, and Disclaimer

Copyright: The material on this website is protected by the copyright laws of the United States.

Plagiarism: Please give credit where credit is due and properly cite your source.

Disclaimer: Mistakes and errors are inevitable. Caveat emptor.

For more information, please see this page.
Mathieu de Montmorency, seigneur of Attichy, whose ancestry is unknown (or not traced here), died at Mansurah, Egypt, February 1250.1

Mathieu married, as her 2nd husband, Marie of Ponthieu, daughter of William II Talvas, Count of Ponthieu and Montreuil and Alice of France, between September 1240 and 15 December 1241.1


Marie of Ponthieu b. bt 1196 - 17 Sep 1199, d. 1250
This person was last edited on11 May 2021


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families (Five vols., Salt Lake City, Utah: s.p., 2013), 2:385 (Dammartin 4), further cited as Richardson, Royal Ancestry.