Biography of Theobald IV King Navarre 1201-1253

Paternal Family Tree: Blois

Maternal Family Tree: Etienette Countess Provence and Arles

On 1st July 1199 [his father] Theobald Blois III Count Champagne [age 20] and [his mother] Blanche Ramirez were married at Chartres [Map]. She the daughter of [his grandfather] Sancho "Wise" King Navarre and [his grandmother] Sancha Ivrea. He the son of Henry Blois I Count Champagne and Marie Capet Countess Champagne. They were third cousin once removed. He a great x 2 grandson of King William "Conqueror" I of England.

On 24th May 1201 [his father] Theobald Blois III Count Champagne [age 22] died.

On 30th May 1201 Theobald IV King Navarre was born to [his father] Theobald Blois III Count Champagne [deceased] and [his mother] Blanche Ramirez. Theobald IV King Navarre succeeded posthumously IV Count Champagne. He a great x 3 grandson of King William "Conqueror" I of England.

In 1222 Theobald IV King Navarre [age 20] and Agnes of Beaujeu Countess Savoy were married. She by marriage Countess Champagne.

In 1226 [his daughter] Blanche "Navarre" Blois Duchess Brittany was born to Theobald IV King Navarre [age 24] and [his wife] Agnes of Beaujeu Countess Savoy. She a great x 4 granddaughter of King William "Conqueror" I of England. She married 1236 her third cousin once removed John "The Red" Capet I Duke Brittany, son of Peter of Dreux aka Mauclerc Duke Brittany and Alix Thouars Duchess of Brittany, and had issue.

In 1229 [his mother] Blanche Ramirez died.

On 11th July 1231 [his wife] Agnes of Beaujeu Countess Savoy died.

The Deeds of the Dukes of Normandy

The Gesta Normannorum Ducum [The Deeds of the Dukes of Normandy] is a landmark medieval chronicle tracing the rise and fall of the Norman dynasty from its early roots through the pivotal events surrounding the Norman Conquest of England. Originally penned in Latin by the monk William of Jumièges shortly before 1060 and later expanded at the behest of William the Conqueror, the work chronicles the deeds, politics, battles, and leadership of the Norman dukes, especially William’s own claim to the English throne. The narrative combines earlier historical sources with firsthand information and oral testimony to present an authoritative account of Normandy’s transformation from a Viking settlement into one of medieval Europe’s most powerful realms. William’s history emphasizes the legitimacy, military prowess, and governance of the Norman line, framing their expansion, including the conquest of England, as both divinely sanctioned and noble in purpose. Later chroniclers such as Orderic Vitalis and Robert of Torigni continued the history, extending the coverage into the 12th century, providing broader context on ducal rule and its impact. Today this classic work remains a foundational source for understanding Norman identity, medieval statesmanship, and the historical forces that reshaped England and Western Europe between 800AD and 1100AD.

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After 11th July 1231 Theobald IV King Navarre [age 30] and Margaret Bourbon Queen Consort Navarre [age 14] were married. She by marriage Countess Champagne.

Around 1233 [his daughter] Eleanor Blois died.

In 1233 [his daughter] Eleanor Blois was born to Theobald IV King Navarre [age 31] and [his wife] Margaret Bourbon Queen Consort Navarre [age 16]. She a great x 4 granddaughter of King William "Conqueror" I of England. She died aged less than one years old.

On 7th April 1234 [his uncle] Sancho "Strong" VII King Navarre [age 79] died. His nephew Theobald [age 32] succeeded IV King Navarre. [his wife] Margaret Bourbon Queen Consort Navarre [age 17] by marriage Queen Consort Navarre.

In 1236 [his son-in-law] John "The Red" Capet I Duke Brittany [age 18] and Blanche "Navarre" Blois Duchess Brittany [age 10] were married. She the daughter of Theobald IV King Navarre [age 34] and Agnes of Beaujeu Countess Savoy. He the son of Peter of Dreux aka Mauclerc Duke Brittany [age 49] and Alix Thouars Duchess of Brittany. They were third cousin once removed. He a great x 4 grandson of King Henry I "Beauclerc" England. She a great x 4 granddaughter of King William "Conqueror" I of England.

Chronica Majora by Matthew Paris. April 1236. In the spring of the same year, many of the nobles rose in insurrection, to make war against the kingdom of France, for it excited their indignation that France, the kingdom of kingdoms, was governed by a woman's counsel. Men of rank and renown, and who had been trained to arms from their early youth, joined in the insurrection; the king of Navarre [age 34], that is, the count of Champagne; the count de la Marche [age 53], the [his son-in-law] count of Brittany [age 18], and a great many other nobles, allied themselves together by treaty and oath.

On 06 or 7th December 1239 [his son] Theobald "Young" II King Navarre was born to Theobald IV King Navarre [age 38] and [his wife] Margaret Bourbon Queen Consort Navarre [age 22]. He a great x 4 grandson of King William "Conqueror" I of England. He married 6th April 1255 his half third cousin Isabella Capet, daughter of King Louis IX of France and Margaret Provence Queen Consort France.

Around 1242 [his daughter] Beatrix Blois Duchess Burgundy was born to Theobald IV King Navarre [age 40] and [his wife] Margaret Bourbon Queen Consort Navarre [age 25]. She a great x 4 granddaughter of King William "Conqueror" I of England. She married 1258 her third cousin Hugh IV Duke Burgundy, son of Odo III Duke Burgundy and Alice Vergy Duchess Burgundy.

William of Worcester's Chronicle of England

William of Worcester, born around 1415, and died around 1482 was secretary to John Fastolf, the renowned soldier of the Hundred Years War, during which time he collected documents, letters, and wrote a record of events. Following their return to England in 1440 William was witness to major events. Twice in his chronicle he uses the first person: 1. when writing about the murder of Thomas, 7th Baron Scales, in 1460, he writes '… and I saw him lying naked in the cemetery near the porch of the church of St. Mary Overie in Southwark …' and 2. describing King Edward IV's entry into London in 1461 he writes '… proclaimed that all the people themselves were to recognize and acknowledge Edward as king. I was present and heard this, and immediately went down with them into the city'. William’s Chronicle is rich in detail. It is the source of much information about the Wars of the Roses, including the term 'Diabolical Marriage' to describe the marriage of Queen Elizabeth Woodville’s brother John’s marriage to Katherine, Dowager Duchess of Norfolk, he aged twenty, she sixty-five or more, and the story about a paper crown being placed in mockery on the severed head of Richard, 3rd Duke of York.

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Around 1244 [his son] Henry I King Navarre was born to Theobald IV King Navarre [age 42] and [his wife] Margaret Bourbon Queen Consort Navarre [age 27]. He a great x 4 grandson of King William "Conqueror" I of England. He married 1269 his half third cousin Blanche Capet Queen Navarre, daughter of Robert Capet Count of Artois and Matilda Reginar Countess Saint Pol, and had issue.

On 8th July 1253 Theobald IV King Navarre [age 52] died. His son Theobald [age 13] succeeded V Count Champagne, II King Navarre.

On 12th April 1256 [his former wife] Margaret Bourbon Queen Consort Navarre [age 39] died.

[his daughter] Marquesa Gil de Rada Blois was born to Theobald IV King Navarre. She a great x 4 granddaughter of King William "Conqueror" I of England.

[his daughter] Agnes Blois was born to Theobald IV King Navarre. She a great x 4 granddaughter of King William "Conqueror" I of England.

[his daughter] Margaret Blois Duchess Lorraine was born to Theobald IV King Navarre and Margaret Bourbon Queen Consort Navarre. She a great x 4 granddaughter of King William "Conqueror" I of England. She married 1255 her third cousin once removed Frederick Metz III Duke Lorraine, son of Matthias Metz II Duke Lorraine and Catherine Luxemburg Duchess Lorraine, and had issue.

[his son] Peter Blois was born to Theobald IV King Navarre and Margaret Bourbon Queen Consort Navarre. He a great x 4 grandson of King William "Conqueror" I of England.

[his illegitimate daughter] Inés of Navarre was born illegitimately to Theobald IV King Navarre. She a great x 4 granddaughter of King William "Conqueror" I of England.