John I of Namur was the ruler of Namur from 1305 to 1330. He was a member of the house of Dampierre, the son of Guy of Dampierre

Guy of Dampierre

Guy of Dampierre was the count of Flanders during the Battle of the Golden Spurs in 1302.Guy was the second son of William II of Dampierre and Margaret II of Flanders. The death of his elder brother William in a tournament made him joint Count of Flanders with his mother...

, Count of Flanders

Count of Flanders

The Count of Flanders was the ruler or sub-ruler of the county of Flanders from the 9th century until the abolition of the position by the French revolutionaries in 1790....

 and Marquis of Namur

Marquis of Namur

Namur was a county of the Carolingian and later Holy Roman Empire in the Low Countries. Its territories largely correspond with the present-day Belgian arrondissement Namur plus the northwestern part of the arrondissement Dinant....

, and his second wife Isabelle of Luxembourg

Isabelle of Luxembourg

Isabelle of Luxembourg was a daughter of Henry V of Luxembourg and his wife, Margaret of Bar. Isabelle was a member of the House of Luxembourg.- Family :...

. John was the father of Blanche of Namur, Queen of Sweden and Norway.

In September 1290, he was betrothed to Blanche of France

Blanche of France (1282–1305)

Blanche of France was consort to Rudolph I of Habsburg, Duke of Austria and Styria and son of King Albert I of Germany.-Family:...

, daughter of Philip III

Philip III of France

Philip III , called the Bold , was the King of France, succeeding his father, Louis IX, and reigning from 1270 to 1285. He was a member of the House of Capet.-Biography:...

.

Instead, John married Margaret of Clermont, daughter of Robert, Count of Clermont

Robert, Count of Clermont

Robert of France was made Count of Clermont in 1268. He was son of King Louis IX of France and Margaret of Provence...

 and Beatrix, Dame de Bourbon, in 1307. He was Margaret's second husband. She died after two years of marriage, in 1309.

John's second wife was Marie of Artois (1291 – January 22, 1365, Wijnendaele), Lady of Merode, daughter of Philip of Artois

Philip of Artois

Philip of Artois was the son of Robert II of Artois, Count of Artois and Amicie de Courtenay. He was the Lord of Conches, Nonancourt, and Domfront....

 and Blanche of Brittany

Blanche of Brittany

Blanche of Brittany was a daughter of John II, Duke of Brittany and his wife Beatrice of England. She is also known as Blanche de Dreux...

. They were married by contract in Paris on 6 March 1310, confirmed Poissy, January 1313. John granted her as dower

Dower

Dower or morning gift was a provision accorded by law to a wife for her support in the event that she should survive her husband...

 the castle of Wijnendale in Flanders, ratified by the Count of Flanders (his half-brother, Robert III) in 1313.

Issue

Name	| Lifespan	Notes
John of Namur John II, Marquis of Namur John II of Namur, , was Marquis of Namur between 1330 and 1335.He was the eldest son of John I, Marquis of Namur, and Mary of Artois.He succeeded his father on January 26 1330... Marquis of Namur	1310/12 - 2 April 1335	Succeeded his father in 1330 as John II, Marquis of Namur. Buried at Kloster Spaltheim.
Guy of Namur Guy II, Marquis of Namur Guy II of Namur, , was Count of Namur between 1335 and 1336.He was the second son of John I, Marquis of Namur, and Mary of Artois.... Marquis 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 Canon (priest) A canon is a priest or minister who is a member of certain bodies of the Christian clergy subject to an ecclesiastical rule ....  at Chartres Cathedral; canon at Cambrai Cathedral, 1324; canon at Châlons-sur-Marne and Reims, 1325.
Blanche of Namur Queen consort of Sweden and Norway	? - autumn 1363	She was accused by the noblewoman Birgitta Birgersdatter (Saint Bridget of Sweden Bridget of Sweden Bridget of Sweden Bridget of Sweden Bridget of Sweden (1303 – 23 July 1373; also Birgitta of Vadstena, Saint Birgitta , was a mystic and saint, and founder of the Bridgettines nuns and monks after the death of her husband of twenty years... ) 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 Tønsberg Fortress Tønsberg Fortress was a medieval fortress, located in Tønsberg, Norway which was defended by the fortress for over 300 years.-History:...  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 Magnus IV of Sweden Magnus Eriksson as Magnus IV was king of Sweden , including Finland, as Magnus VII King of Norway , including Iceland and Greenland, and also ruled Scania . He has also vindictively been called Magnus Smek... . He was deposed in 1344 as King of Norway, and in 1363 as King of Sweden.
Philip of Namur Philip III, Marquis of Namur Philip III of Namur, , was Count of Namur between 1336 and 1337.He was the fourth son son of John I, Marquis of Namur, and Mary of Artois.... Marquis of Namur	1319 - September 1337	Succeeded his brother in 1336 as Philip III, Marquis of Namur. Murdered at Famagusta Famagusta Famagusta is a city on the east coast of Cyprus and is capital of the Famagusta District. It is located east of Nicosia, and possesses the deepest harbour of the island.-Name:... .
Marie of Namur Gräfin von Vianden Dame de Pierrepont	1322 - before 29 October 1357	Married firstly, in 1335/36, Henry II, Graf Graf Graf is a historical German noble title equal in rank to a count or a British earl...  of Vianden Vianden Vianden is a commune with city status in the Oesling, north-eastern Luxembourg, with over 1,500 inhabitants. It is the capital of the canton of Vianden, which is part of the district of Diekirch. Vianden lies on the Our river, near the border between Luxembourg and Germany., the town of Vianden,... , son of Philip II, Graf of Vianden and his first wife Lucia von der Neuerburg. Her first husband was murdered at Famagusta Famagusta Famagusta is a city on the east coast of Cyprus and is capital of the Famagusta District. It is located east of Nicosia, and possesses the deepest harbour of the island.-Name:...  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 Theobald II of Bar Theobald II, Count of Bar was a count of Bar. He was the son of Henry II of Bar and Philippa of Dreux. He became count of Bar when his father was killed in the Holy Land on 13 November 1239, but news of Henry's death only reached him at the start of 1240. As Theobald was still a minor, his... ), and his wife Isabelle of Lorraine (daughter of Theobald II, Duke of Lorraine Theobald II, Duke of Lorraine Theobald II was the duke of Lorraine from 1303 to his death. He was the son and successor of Frederick III and Margaret, daughter of King Theobald I of Navarre.... ).
Margaret of Namur	1323 - 13 September 1383	A nun Nun A nun is a woman who has taken vows committing her to live a spiritual life. She may be an ascetic who voluntarily chooses to leave mainstream society and live her life in prayer and contemplation in a monastery or convent...  at Peteghem.
William of Namur William I, Marquis of Namur William I, Marquis of Namur, the Rich, was Count of Namur from 1337 until his death.He was the fifth son of John I and Mary of Artois.... Marquis of Namur	1324 - 1 October 1391	Succeeded his brother in 1337 as William I "the Rich", Marquis of Namur. Buried at the Franciscan Franciscan Most Franciscans are members of Roman Catholic religious orders founded by Saint Francis of Assisi. Besides Roman Catholic communities, there are also Old Catholic, Anglican, Lutheran, ecumenical and Non-denominational Franciscan communities....  convent in Namur Namur (city) Namur is a city and municipality in Wallonia, in southern Belgium. It is both the capital of the province of Namur and of Wallonia.... . Father of William II, Marquis of Namur William II, Marquis of Namur William II, marquis of Namur inherited the marquisate of Namur from his father William I in 1391 and held it until his own death.... , and John III, Marquis of Namur, who sold Namur to Philip the Good.
Robert of Namur Robert de Namur Robert of Namur, KG was a noble from the Low Countries close to King Edward III of England. He was made Knight of the Garter in 1369.His was the son of John I, Count of Namur, and Marie, Lady of Merode.... Seigneur de Beaufort-sur-Meuse et de Renaix	1325 - 1/29 April 1391	Seigneur de Beaufort-sur-Meuse et de Renaix; Marshal Marshal Marshal , is a word used in several official titles of various branches of society. The word is an ancient loan word from Old French, cf...  of Brabant Duchy of Brabant The Duchy of Brabant was a historical region in the Low Countries. Its territory consisted essentially of the three modern-day Belgian provinces of Flemish Brabant, Walloon Brabant and Antwerp, the Brussels-Capital Region and most of the present-day Dutch province of North Brabant.The Flag of... . Married firstly (dispensation 18 October 1354) Isabelle of Hainault, sister of Philippa of Hainault Philippa of Hainault Philippa of Hainault, or, Philippe de Hainaut was the Queen consort of King Edward III of England. Edward, Duke of Guyenne, her future husband, promised in 1326 to marry her within the following two years... , daughter of William III, Count of Hainault William I, Count of Hainaut William I, Count of Hainaut was Count William III of Avesnes, Count William III of Holland and Count William II of Zeeland from 1304 to his death...  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 (-1409). Robert had two illegitimate children by unknown mistresses.
Louis of Namur Seigneur de Peteghem et de Bailleul	1325 - 1378/86	Seigneur de Peteghem et de Bailleul. Flemish counsellor. Governor Governor A governor is a governing official, usually the executive of a non-sovereign level of government, ranking under the head of state...  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 Namur Electress Palatine	1329 - 29 March 1382	Married Rupert I, Elector Palatine, in autumn 1350 or summer 1358. Died without children in Heidelberg Heidelberg -Early history:Between 600,000 and 200,000 years ago, "Heidelberg Man" died at nearby Mauer. His jaw bone was discovered in 1907; with scientific dating, his remains were determined to be the earliest evidence of human life in Europe. In the 5th century BC, a Celtic fortress of refuge and place of... .

Sources

• Foundation for Medieval Genealogy - Namur