Mahaut of Portugal

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Mahaut of Portugal, daughter of Alfonso I "the Conquistador," King of Portugal and Maud of Savoy, was born in 1151.1 She drowned when her carriage fell into a marsh at Veurne, West Flanders, Belgium, in 1218.1

Mahaut married (1) Philippe, Count of Flanders, whose ancestry is known but not traced here,2 she married (2) Eudes III, Duke of Burgundy, son of Hugues III, Duke of Burgundy and Alix of Lorraine, 1193;2 their marriage was dissolved on grounds of consanguinity in 1195.2

For more information about Mahaut of Portugal, please see this Wikipedia article.

Family 1

Philippe, Count of Flanders d. bef. 1199

Family 2

Eudes III, Duke of Burgundy b. 1166, d. 6 Jul 1218
This person was last edited on26 Apr 2021


  1. [S1323] Wikipedia Contributors, "Theresa of Portugal, Countess of Flanders," Wikipedia, The Free Encyclopedia,,_Countess_of_Flanders[:WEB] (accessed Apr 2021).
  2. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families (Five vols., Salt Lake City, Utah: s.p., 2013), 2:29 (Burgundy 6), further cited as Richardson, Royal Ancestry.