About Marie of Artois
Lived 1291 – 1365 (aged 73–74). Marie of Artois was a sovereign.
Marie of Artois (1291-1365) was the margravine of Namur in 1310-1330 by marriage to John I. She was the regent of Namur during the minority of her son William I in 1337-1340.
She became the lady of Méraude (Merode) when she purchased it from King John of Bohemia in 1342, until she left it to her son William I in 1353.
Life She was the fourth daughter of Philip of Artois and Blanche of Brittany.
Marie married Marquis John I of Namur. They were married by contract in Paris on 6 March 1310, confirmed in Poissy in January 1313. John granted her as dower the castle of Wijnendale in Flanders, ratified by John's half-brother Count Robert III of Flanders in 1313.
She became a widow in 1330.
In 1337, her youngest fifth son became marquis. Since he was fifteen and a minor, she became regent of Namur until her reached his majority.
Issue Name Lifespan Notes John of NamurMarquis of Namur1310/12 - 2 April 1335 Succeeded his father in 1330 as John II, Marquis of Namur. Buried at Kloster Spaltheim. Guy of NamurMarquis of Namur 1311/13 - 12 March 1336 Succeeded his brother in 1335 as Guy II, Marquis of Namur. Henry of Namur 1312/13 – 8 October 1333 Canon at Chartres Cathedral; canon at Cambrai Cathedral, 1324; canon at Châlons-sur-Marne and Reims, 1325. Philip of NamurMarquis of Namur 1319 - September 1337 Succeeded his brother in 1336 as Philip III, Marquis of Namur. Murdered at Famagusta, Cyprus. Blanche of NamurQueen consort of Sweden and Norway 1320 - autumn 1363 She was accused by the noblewoman Birgitta Birgersdatter (Saint Bridget of Sweden) of having poisoned the latter's son, her innocence of the crime only being proved at the end of the 18th century. She lived at Tønsberghus castle in Norway from 1358, because of the political situation in Sweden, and administered the fiefs of Vestfold and Skienssysla. Married 5 November 1335 at Bohus Castle Magnus IV of Sweden. He was deposed in 1355 as King of Norway, and in 1364 as King of Sweden. Marie of NamurGräfin von ViandenDame de Pierrepont 1322 - before 29 October 1357 Married firstly, in 1335/36, Henry II, Graf of Vianden, son of Philip II, Graf of Vianden and his first wife Lucia von der Neuerburg. Her first husband was murdered at Famagusta in September 1337. Married secondly (1340, dispensation 9 September 1342) her father's second cousin, Theobald of Bar, Seigneur de Pierrepont, son of Erard of Bar, Seigneur de Pierrepont et d'Ancerville (himself son of Theobald II of Bar), and his wife Isabelle of Lorraine (daughter of Theobald II, Duke of Lorraine). Margaret of Namur 1323 - 13 September 1383 A nun at Peteghem. William of NamurMarquis of Namur 1324 - 1 October 1391 Succeeded his brother in 1337 as William I "the Rich", Marquis of Namur. Buried at the Franciscan convent in Namur. Father of William II, Marquis of Namur, and John III, Marquis of Namur, who sold Namur to Philip the Good. Robert of NamurSeigneur de Beaufort-sur-Meuse et de Renaix 1325 -1/29 April 1391 Seigneur de Beaufort-sur-Meuse et de Renaix; Marshal of Brabant. Married firstly (dispensation 18 October 1354) Isabelle of Hainault, sister of Philippa of Hainault, daughter of William III, Count of Hainault and his wife Joan of Valois. Married secondly (4 February 1380) as her first husband, Isabeau de Melun, heiress of Viane, daughter of Hugues de Melun, Seigneur d'Antoing (died 1409). Robert had two illegitimate children by unknown mistresses. Louis of NamurSeigneur de Peteghem et de Bailleul 1325 - 1378/86 Seigneur de Peteghem et de Bailleul. Flemish counsellor. Governor of Namur 1351. Married on 17 May 1365 Isabelle de Roucy, Dame de Roucy, daughter and heiress of Robert II, Count of Roucy and his wife Marie d'Enghien (-after 1396). Elizabeth of NamurElectress Palatine 1329 - 29 March 1382 Married Rupert I, Elector Palatine, in autumn 1350 or summer 1358. Died without children in Heidelberg.
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Important facts
Family & relationships
People in Marie of Artois's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Marie of Artois's
Frequently asked questions
Who was Marie of Artois?
margravine of Namur
When was Marie of Artois born?
Marie of Artois was born in 1291.
When did Marie of Artois die?
Marie of Artois died in 1365 in Torhout.
What was Marie of Artois's occupation?
Marie of Artois was a sovereign.
What nationality was Marie of Artois?
Marie of Artois's recorded nationality: Duchy of Brittany.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Marie of Artois. https://biography.guide/marie-of-artois/
MLA: "Marie of Artois." Biography.guide, https://biography.guide/marie-of-artois/.
Chicago: "Marie of Artois." Biography.guide. https://biography.guide/marie-of-artois/.
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