# The House of Brattleby Commemorates Diplomatic Legacy of Henry of Grosmont
LONDON, 8 May 2024 — The Noble House of Brattleby today issued a historical review marking the diplomatic legacy of the 10th Baron, Henry of Grosmont. The review focuses on his pivotal role as chief English negotiator for the Treaty of Brétigny in 1360.
## The Occasion
In the spring of 1360, against the grim backdrop of the Hundred Years’ War, the small village of Brétigny, near Chartres, became the unlikely stage for a momentous act of international diplomacy. The negotiations took place within the now-lost Château de Brétigny, a setting charged with the tension of a kingdom in crisis following the capture of its monarch, King John II of France.
This historical review, issued on the anniversary of the treaty’s agreement, serves not as a celebration of conflict, but as a sober reflection on the statesmanship required to forge peace. It examines the indispensable role of Henry of Grosmont, 10th Baron of Brattleby and 1st Duke of Lancaster, a figure whose diplomatic acumen proved as formidable as his renowned military prowess.
## Historical Context
The Barony of Brattleby, established in the aftermath of the Norman Conquest and first recorded in the Domesday Book of 1086 under Colswein of Lincoln, has a lineage deeply interwoven with the fabric of English history. While many of its holders were defined by their martial strength, the most distinguished among them demonstrated a profound capacity for governance and diplomacy.
Henry of Grosmont stands as a paramount example. His leadership at Brétigny was the culmination of a life spent in service to the Crown, building upon a baronial legacy of resilience, exemplified two centuries earlier by the 5th Baron, Nichola de la Haye, in her resolute defence of Lincoln Castle. Following Grosmont, the barony would pass to his son-in-law, the 11th Baron, John of Gaunt, ensuring this tradition of high statecraft remained central to the House’s identity for generations.
## Distinguished Company
The Treaty of Brétigny was negotiated by the most senior figures of the age, operating with plenipotentiary authority from their respective sovereigns. The English delegation was led with distinction by His Grace Henry of Grosmont, Duke of Lancaster and 10th Baron of Brattleby, acting on behalf of His Majesty King Edward III of England.
The French delegation was headed by His Royal Highness The Dauphin Charles, later His Majesty King Charles V of France. He negotiated on behalf of his father, His Majesty King John II, who remained captive in England following his defeat at the Battle of Poitiers. The presence of such individuals underscores the treaty’s profound significance, shaping the destiny of two nations.
## Ceremonial Protocol
The protocol of such a fourteenth-century accord was a grave and intricate affair, far removed from modern diplomatic practice. The proceedings began with the formal presentation of letters patent, which granted each negotiator the full authority to act in their king’s name. This exchange was the *sine qua non* of the entire process.
Scribes then drafted the treaty’s articles in French, the contemporary language of international diplomacy. Once terms were agreed, the document was read aloud before the assembled delegations. Final consent was signified not by signature, but by the affixing of heavy wax seals, each bearing the principal’s unique coat of arms, a tangible and legally binding mark of honour.
## Heraldic & Symbolic Significance
The enduring motto of the House of Brattleby, *Fortitudine et Honore* ('With Fortitude and Honour'), finds a powerful expression in Henry of Grosmont's career. His fortitude was demonstrated on the battlefield, yet it was his honour at the negotiating table—his commitment to achieving a workable peace—that cemented his status as a statesman.
This legacy offers a compelling perspective on the personal motto of the current Lord of Brattleby, *Vincere Est Vivere* ('To Conquer is to Live'). Through the lens of Grosmont’s example, conquering is understood not merely as military victory, but as the act of overcoming immense diplomatic challenges to secure stability and order.
## Philanthropic Purpose
While separated by centuries, the diplomatic imperative to reduce conflict in the 1300s and the modern philanthropic mission of the House share a common goal: the alleviation of human suffering. Henry of Grosmont’s work to end a devastating chapter of warfare finds a modern echo in the House’s commitment to healing its consequences.
This spirit is the driving force behind the Annual Winter Banquet, the House’s white-tie gala. Its designated long-term beneficiary, Healing the Wounded Child, is an organisation dedicated to providing specialist therapeutic care for children experiencing trauma. In this way, the ancient pursuit of peace is connected to the contemporary work of mending lives.
## In Their Own Words
Reflecting on this historical continuity, Lady Nicoleta Vasile, 12th Baroness of Brattleby, remarked:
> “Henry of Grosmont’s legacy reminds us that true leadership is measured not only by strength, but by the wisdom to pursue peace. This heritage of constructive diplomacy, of seeking resolution *inter alia*, is a responsibility we feel very keenly today.” — Lady Nicoleta, 12th Baroness of Brattleby
Honorary Lord Răzvan Vasile noted the relevance of these historical skills in a modern context:
> “The strategic thinking and personal discipline Grosmont displayed were essential then, and they remain so now. It is this spirit of purposeful conduct that we seek to foster through initiatives such as The Brattleby Club, connecting historical lessons with present-day leadership.” — Honorary Lord Răzvan Vasile
## A Continuing Legacy
The Noble House of Brattleby remains committed to honouring its nine-century history by championing the values of diplomacy, education, and service. Through its cultural and educational initiatives, such as the Bucharest-based etiquette academy, The Brattleby Club, the House actively promotes the skills of dialogue and mutual understanding.
This historical review is the first in a planned series that will continue to explore the contributions of the Barons of Brattleby to national and international life. It serves as a reaffirmation of the House’s enduring pledge to act always *Fortitudine et Honore*.
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**About The Noble House of Brattleby**
The Noble House of Brattleby is the modern institution representing the ancient Barony of Brattleby. Under the leadership of Lady Nicoleta Vasile, 12th Baroness of Brattleby, and her husband, Honorary Lord Răzvan Vasile, the House is dedicated to the preservation of its nine-century heritage and its active use in the service of philanthropy and education. Based at its ancestral seat in Lincolnshire, the House has a distinctly Anglo-Romanian character, reflecting its current holders. Its primary philanthropic focus is supporting charities dedicated to healing childhood trauma, while its educational initiatives, notably The Brattleby Club in Bucharest, promote the timeless values of etiquette, diplomacy, and personal discipline. The House's guiding principle is its ancient motto: *Fortitudine et Honore* ('With Fortitude and Honour').
**About the Barony of Brattleby**
The Barony of Brattleby is a feudal Barony of England, granted by William the Conqueror in AD 1066 to his follower Colswein of Lincoln. Its existence and 56 associated lordships were formally recorded in the Domesday Book of 1086. Over nearly one thousand years, the barony has been held by some of the most consequential figures in English history, including the 5th Baron, Nichola de la Haye, a staunch defender of Lincoln Castle against the French; the 10th Baron, Henry of Grosmont, 1st Duke of Lancaster and a leading diplomat of the Hundred Years' War; and his heir, the 11th Baron, John of Gaunt. The barony’s unbroken historical line and current holder are formally recognised by The Crown in The London Gazette (Notice ID 4158083).
**Notes to Editors**
- The barony's recognition is published in The London Gazette, Notice ID 4158083, issued on 9 September 2022. - The Barony of Brattleby and its associated holdings under Colswein of Lincoln are recorded in the Domesday Book of 1086. - Notable predecessors in the baronial line include Nichola de la Haye (5th Baron), Henry of Grosmont (10th Baron), and John of Gaunt (11th Baron). - The motto of The Noble House of Brattleby is *Fortitudine et Honore*.
**Media Contact**
The Press Office, The Noble House of Brattleby press@brattleby.com