|Blanche of Artois|
| Queen consort of Navarre |
Countess consort of Champagne
|Tenure||4 December 1270 – 22 July 1274|
|Died||2 May 1302 (aged 53–54)|
Cordeliers Convent, Paris, France
|Spouse|| Henry I of Navarre |
|Issue||Theobald of Navarre|
Joan I of Navarre
Thomas, 2nd Earl of Lancaster
Henry, 3rd Earl of Lancaster
|Father||Robert I, Count of Artois|
|Mother||Matilda of Brabant|
Blanche of Artois (Basque : Blanka; c. 1248 – 2 May 1302) was Queen of Navarre and Countess of Champagne and Brie during her marriage to Henry I of Navarre. After his death she became regent in the name of their infant daughter, Joan I. She passed on the regency of Navarre to Philip III of France, her cousin and her daughter's prospective father-in-law, but retained the administration of Champagne. She later shared the government of Champagne with her second husband, Edmund, until her daughter reached the age of majority.
Blanche was the elder child and only daughter of Robert I, Count of Artois,  and Matilda of Brabant.  A fraternal niece of King Louis IX of France, Blanche was probably born in 1248. By February 1269, having received a papal dispensation, she was married to Henry, the brother of King Theobald II of Navarre.  The ceremony took place in Melun near Paris.  Her brother-in-law, in turn, was married to her cousin, Isabella of France.  Henry was governing his brother's realm when King Theobald and Queen Isabella left to join the Eighth Crusade. When the King died in December 1270, followed by his widow within a few months, Blanche's husband became King of Navarre and Count of Champagne. 
King Henry and Queen Blanche were a young couple with a son, Theobald, and the future of the House of Blois seemed bright.  In 1273, however, they lost their son in an accident  when the young Theobald was dropped by his nurse over the castle battlements.  A daughter named Joan, born the same year, remained the royal couple's only child and was recognized as heir presumptive by the King and the Estates. The following year, on 22 July, King Henry himself died. The death of two kings within five years and accession of an infant queen, the first woman to rule Navarre and Champagne alike, triggered a political crisis. 
Now queen dowager, Blanche became regent for her daughter. Her regency in Champagne was preceded by several long regencies of widowed mothers, but this was the first regency for a female ruler.  The neighbouring kingdoms of Castile and Aragon moved to exploit the precarious situation. Both Alfonso X of Castile and Peter III of Aragon wanted to secure Navarre for their respective houses either by marriage with Joan or by force. While Peter contemplated a marriage with a cousin of Joan, Alfonso moved his army to Navarre and started besieging Viana. The citizens loyally defended the city, for which Queen Blanche thanked them by granting special privileges. 
Blanche remained in Pamplona at least until 14 April, but then fled the kingdom, taking Joan with her, on the pretext of visiting her daughter's fiefs in the north of France. In reality, she sought protection from her cousin, King Philip III of France. In November, she paid homage to him for her daughter's French possessions. The almost immediate departure of both the monarch and the regent only complicated the situation in Navarre. In May 1275, Queen Blanche signed the Treaty of Orléans, by which she promised Joan's hand in marriage to one of the older two sons of the King of France, either Louis or Philip.  The elder died within a year, and Philip was left as both heir to the French throne and Joan's bridegroom. Blanche administered Joan's territories from Paris, appointing governors for Navarre. Later this role was taken over by Joan's prospective father-in-law, while Blanche retained the administration of Champagne and Brie. 
Between 28 July and 29 October 1276, in Paris, Blanche became the second wife of Edmund Crouchback, brother of King Edward I of England.  The marriage was orchestrated by the dowager queen of France Margaret of Provence, who wished to secure a wealthy bride for her nephew. There are also reports, however, that the two married out of mutual attraction. Edmund joined Blanche in administering Champagne and Brie.  Edmund and Blanche had four children: Mary, who died young, Thomas, Henry and John. 
When Joan became old enough to marry and take full control of her inheritance, in 1284, Blanche and Edmund had to give up the counties. They were compensated by Blanche's dower, a hefty sum of money and the right to use the palace of the Navarrese kings in Paris.   The following year, Philip III died and was succeeded by Blanche's son-in-law, Philip IV. 
When hostilities broke out between England and France in 1293, Edmund and Blanche left Paris and moved to England.  They returned to France in 1296 but resided in King Edward's continental possessions, where Edmund served as lieutenant of Gascony. Blanche was widowed again in June the same year when Edmund died during the siege of Bordeaux. She returned to her brother-in-law's court in November but did not stay in England for long. She received her dower, consisting of one third of all of Edmund's lands and all his rights in the earldom of Ferrers, and in 1298 she was back in France. She founded a Franciscan abbey in Nogent-l'Artaud in 1299, dedicated to Saint Louis IX of France, and declared her wish to be buried there rather than with her second husband in London or with her first husband in Provins.  Queen Blanche's body is buried at the Cordeliers Convent in Paris, where her daughter was later buried beside her. 
|Louis VIII of France|
|Louis IX of France||Robert I of Artois|
|Philip III of France||Henry I of Navarre||Blanche of Artois||Edmund Crouchback|
|Philip IV of France||Joan I of Navarre|
Philip III, called the Bold, was King of France from 1270 until his death in 1285. His father, Louis IX, died in Tunis during the Eighth Crusade. Philip, who was accompanying him, returned to France and was anointed king at Reims in 1271.
Henry the Fat was King of Navarre and Count of Champagne and Brie from 1270 until his death.
Marie of France was a French princess who became Countess of Champagne by marriage to Henry I, Count of Champagne. She was regent of the county of Champagne three times: during the absence of her spouse between 1179 and 1181; during the minority of her son Henry II, Count of Champagne in 1181–1187; and finally during the absence of her son between 1190 and 1197.
Charles III, called the Noble, was King of Navarre from 1387 to his death and Count of Évreux from 1387 to 1404, when he exchanged it for the title Duke of Nemours. He spent his reign improving the infrastructure of his kingdom, restoring Navarre's pride after the dismal reign of his father, Charles the Bad, and mending strained relations with France.
The count of Champagne was the ruler of the County of Champagne from 950 to 1316. Champagne evolved from the County of Troyes in the late eleventh century and Hugh I was the first to officially use the title count of Champagne.
Theobald III was Count of Champagne from 1197 to his death. He was designated heir by his older brother Henry II when the latter went to the Holy Land on the Third Crusade, and succeeded him upon his death. He cooperated closely with his uncle and suzerain King Philip II of France. He died young, and was succeeded by a posthumous son, Theobald IV, while his widow, Blanche of Navarre, ruled as regent.
Theobald I, also called the Troubadour and the Posthumous, was Count of Champagne from birth and King of Navarre from 1234. He initiated the Barons' Crusade, was famous as a trouvère, and was the first Frenchman to rule Navarre.
Joan I was Queen of Navarre and Countess of Champagne from 1274 until 1305; she was also Queen of France by marriage to King Philip IV. She founded the College of Navarre in Paris in 1305.
Alice of Champagne was the queen consort of Cyprus from 1210 to 1218, regent of Cyprus from 1218 to 1223, and of Jerusalem from 1243 to 1246. She was the eldest daughter of Queen Isabella I of Jerusalem and Count Henry II of Champagne. In 1210, Alice married her step-brother King Hugh I of Cyprus, receiving the County of Jaffa as dowry. After her husband's death in 1218, she assumed the regency for their infant son, King Henry I. In time, she began seeking contacts within her father's counties in France to bolster her claim to Champagne and Brie against her cousin, Theobald IV. However, the kings of France never acknowledged her claim.
Blanche of Navarre, was a French princess and Infanta of Navarre as a member of the House of Évreux and by marriage Queen of France from 29 January until 22 August 1350.
Joan II was Queen of Navarre from 1328 until her death. She was the only surviving child of Louis X of France, King of France and Navarre, and Margaret of Burgundy. Joan's paternity was dubious because her mother was involved in a scandal, but Louis X declared her his legitimate daughter before he died in 1316. However, the French lords were opposed to the idea of a female monarch and elected Louis X's brother, Philip V, king. The Navarrese noblemen also paid homage to Philip. Joan's maternal grandmother, Agnes of France, and uncle, Odo IV of Burgundy, made attempts to secure the counties of Champagne and Brie to Joan, but the French royal troops defeated her supporters. After Philip V married his daughter to Odo and granted him two counties as her dowry, Odo renounced Joan's claim to Champagne and Brie in exchange for a compensation in March 1318. Joan married Philip of Évreux, who was also a member of the French royal family.
Philip III, called the Noble or the Wise, was King of Navarre from 1328 until his death. He was born a minor member of the French royal family but gained prominence when the Capetian main line went extinct, as he and his wife and cousin, Joan II of Navarre, acquired the Iberian kingdom and a number of French fiefs.
Blanche of Navarre was Countess of Champagne by marriage to Theobald III, Count of Champagne, and regent of Champagne during the minority of her son Theobald I of Navarre between 1201 and 1222.
Blanche I was Queen of Navarre from the death of her father, King Charles III, in 1425 until her own death. She had been Queen of Sicily from 1402 to 1409 by marriage to King Martin I, serving as regent of Sicily from 1404 to 1405 and from 1408 to 1415.
The War of the Succession of Champagne was a war from 1216 to 1222 between the nobles of the Champagne region of France, occurring within that region and also spilling over into neighboring duchies. The war lasted two years and de facto ended in 1218, but did not officially end until Theobald IV reached the age of majority in 1222, at which point his rivals abandoned their claims.
Érard de Brienne was a French nobleman. He was lord of Ramerupt and of Venizy, and also a pretender to the county of Champagne as an instigator of the Champagne War of Succession. He was a son of André of Brienne and of Alix of Vénizy.
Margaret of Bourbon was Queen of Navarre and Countess of Champagne from 1234 until 1253 as the third wife of Theobald I of Navarre. After her husband's death, she ruled both the kingdom and the county as regent for three years in the name of their son, Theobald II of Navarre.
Beatrice of Navarre, was Duchess of Burgundy, by marriage to Hugh IV, Duke of Burgundy. She was a daughter of Theobald I of Navarre and his third wife Margaret of Bourbon. Her siblings included Theobald II of Navarre and Henry I of Navarre. She is also known as Beatrix of Champagne.
Philippa of Champagne was the third daughter of Queen Isabella I of Jerusalem and Count Henry II of Champagne. She was the wife of Erard de Brienne-Ramerupt, who encouraged her in 1216 to claim the county of Champagne which belonged to her cousin Theobald IV, who was still a minor. This provoked the conflict with Theobald's mother, the Regent, Blanche of Navarre, which erupted into open warfare, and came to be known as the Champagne War of Succession. Blanche's son Theobald, who had the support of King Philip II of France, Frederick II, Holy Roman Emperor, and Eudes III of Burgundy, eventually emerged the victor. Philippa renounced her claim in April 1222, but Theobald was constrained to pay Erard and Philippa a large monetary settlement for his rights to the county.
The Treaty of Orléans was a marriage treaty signed in 1275, that led to a short-lived personal union between the kingdoms of Navarre and France. It was signed by Philip III of France and his cousin Blanche of Artois, mother and regent to the two-year-old Joan I of Navarre. The original intent of the treaty was to not create a personal union, however, but to enable Philip to administer Navarre in Joan's name. Joan was also to marry either Philip's firstborn and heir apparent, Louis, or his second son, Philip. Pope Gregory X explicitly stated that he preferred a match with the younger son, as he probably wished to avoid merging Navarre with France. Louis died in 1276, however, leaving Philip as the only choice per the terms of the treaty.