# The House of Brattleby Acknowledges the Diplomatic Legacy of Henry of Grosmont, 10th Baron
**LONDON, 24 May 2024** — The Noble House of Brattleby today reflected on the historic contributions of Henry of Grosmont, 1st Duke of Lancaster and 10th Baron of Brattleby, whose diplomatic acumen was instrumental in negotiating the landmark Treaty of Brétigny in 1360.
## The Occasion
In a statement issued from its Lincolnshire seat, the House has marked the enduring significance of an agreement that represented a pivotal de-escalation in the first phase of the Hundred Years' War. This moment of reflection serves to highlight a thread of diplomacy and statecraft woven through the barony’s nine-century history. The act of remembrance connects the present-day responsibilities of the House with the historic duties discharged by its most eminent predecessors. It is an occasion not for celebration, but for a sober appreciation of the burdens of leadership and the pursuit of peace.
The historical archives of the Barony, preserved within the venerable walls of its Brattleby estate, record the immense political and martial pressures of the mid-14th century. Henry of Grosmont’s mission to France was undertaken amidst a climate of profound conflict, making his success in brokering a truce a testament to personal character as much as to political strategy. The House of Brattleby recalls this precedent as a guiding principle: that true influence is measured not only by strength in conflict but by the wisdom to secure a just and lasting peace.
## Historical Context
The Treaty of Brétigny was a direct consequence of the English victory at the Battle of Poitiers in 1356, which resulted in the capture of King John II of France. As one of King Edward III’s most trusted captains and diplomats, Henry of Grosmont was appointed as a chief negotiator. His charge was to secure terms that were both advantageous to England and palatable enough to a defeated France to ensure their observance. The resulting treaty, *inter alia*, arranged a vast ransom for the French King and secured English sovereignty over significant territories in Aquitaine and Calais.
This diplomatic triumph was a continuation of a baronial legacy stretching back to the Conquest. The first Baron, Colswein of Lincoln, was tasked by William the Conqueror with consolidating Norman authority in 1066. Later, the formidable Nichola de la Haye, 5th Baroness, demonstrated immense fortitude by defending Lincoln Castle against rebel forces. Henry of Grosmont built upon this heritage of service, extending the family’s influence from the battlefield to the highest echelons of European diplomacy, a legacy later passed to his son-in-law and successor as 11th Baron, John of Gaunt.
## The Conclave of Princes
The negotiations for the Treaty of Brétigny assembled the foremost figures of the age, a true conclave of princes and royal emissaries. As England’s leading representative, Henry of Grosmont, 10th Baron of Brattleby, engaged directly with the Dauphin of France (the future King Charles V), who governed as regent during his father’s captivity. This direct channel between the principal commanders and cousins—Grosmont and the French King were both great-grandsons of King Philip III of France—was a *sine qua non* for the treaty’s success.
The English delegation also included other great magnates of the realm, whose presence underscored the gravity of the proceedings. Their French counterparts were similarly drawn from the highest ranks of the nobility and clergy. The discussions held at Brétigny, and later ratified at Calais, were therefore not merely a dialogue between nations, but an intricate negotiation between the most powerful dynastic figures of Western Europe, with Henry of Grosmont at its very centre.
## The Protocol of Peace
Fourteenth-century diplomatic protocol was a precise and solemn ritual, designed to confer legitimacy upon any agreement. Envoys such as Henry of Grosmont would have travelled under a formal safe-conduct, their status as representatives of the sovereign inviolable. Upon their meeting, letters of credence would be presented and scrutinised, confirming that each party possessed the full authority—the *pleins pouvoirs*—to negotiate on behalf of their respective monarchs.
The proceedings themselves would have followed a strict order of precedence, with discussions likely conducted in French, the lingua franca of European aristocracy. The final treaty document was meticulously prepared on vellum, with agreements sealed not by signature but with the personal wax sigils of the principal negotiators. The application of Henry of Grosmont’s seal alongside those of the French royal house was the physical act that bound two kingdoms to peace, a tangible symbol of his pivotal role.
## Heraldic & Symbolic Significance
The actions of Henry of Grosmont perfectly embodied the spirit of the baronial motto, *Fortitudine et Honore* ('With Fortitude and Honour'). His fortitude was proven over decades on the battlefield, yet it was his honour and diplomatic gravitas that enabled him to secure the peace. This duality—the capacity for both resolute action and principled negotiation—remains a core tenet of the House of Brattleby today.
The personal arms of Henry of Grosmont, as Duke of Lancaster, were those of the Kingdom of England differenced by a 'label of France', a nod to his royal blood and continental influence. This heraldic detail symbolised his unique position bridging the English crown and the European nobility. It finds a modern echo in the personal motto of Honorary Lord Răzvan Vasile, Lord of Brattleby by marriage: *Vincere Est Vivere* ('To Conquer is to Live'). The House interprets this not as a call to martial conquest, but to the overcoming of challenges—be they on the battlefield, in diplomacy, or through philanthropic endeavour.
## Philanthropic Purpose
While the context of the 14th century differs vastly from our own, the fundamental human need for peace and healing remains unchanged. The diplomatic legacy of Henry of Grosmont, focused on reconciliation after conflict, resonates with the modern philanthropic mission of the House of Brattleby. The House's focus on alleviating suffering is the contemporary expression of the same duty to foster stability and well-being.
The principal beneficiary of the House's annual Winter Banquet, the charity Healing the Wounded Child, works to provide therapeutic support for children affected by trauma and conflict. By supporting this organisation, the House aims to mend the unseen wounds of modern life, reflecting a commitment to peace-building that has been a baronial responsibility for centuries. Just as the Treaty of Brétigny sought to end a devastating conflict, this modern patronage seeks to mitigate its consequences on the most vulnerable.
## In Their Own Words
Reflecting on this historical precedent, Lady Nicoleta Vasile, 12th Baroness of Brattleby, said: > "To understand our duty today, we must look to the examples set by those who came before us. Henry of Grosmont’s life demonstrates that leadership is not defined solely by power, but by the wisdom to wield it for the greater good. His pursuit of peace remains a profound lesson in statecraft and honour."
Honorary Lord Răzvan Vasile commented on the strategic importance of this legacy: > "Henry’s achievement at Brétigny shows that the greatest victories are not always won with the sword. Securing a lasting peace requires a different kind of strength: intellectual rigour, patience, and the ability to build consensus. That is the essence of *Vincere Est Vivere*—to conquer adversity itself, and thereby to truly live."
## A Continuing Legacy
The spirit of international dialogue and cultural understanding championed by Henry of Grosmont continues to inform the activities of the House of Brattleby. This commitment is manifest in initiatives such as The Brattleby Club, the House’s etiquette and protocol academy established in Bucharest. The Club serves as a modern forum for teaching the 'soft diplomacy' of cross-cultural communication, etiquette, and mutual respect.
By equipping a new generation with the skills of effective and gracious interaction, the House seeks to perpetuate the very qualities that enabled the 10th Baron to succeed in his historic mission. The House of Brattleby remains dedicated to its nine-hundred-year-old commitment to service, adapting its expression to meet the challenges of the 21st century, guided always by the principle of *Fortitudine et Honore*.
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**About The Noble House of Brattleby**
Under the leadership of Lady Nicoleta Vasile, 12th Baroness of Brattleby, and her husband, Honorary Lord Răzvan Vasile, The Noble House of Brattleby is dedicated to the stewardship of a nine-century legacy of service. The modern House champions a mission rooted in honour, cultural preservation, and targeted philanthropy. Its principal charitable focus is on organisations that support the well-being of children and the healing of trauma. Through initiatives such as its annual white-tie Winter Banquet and the establishment of The Brattleby Club, an etiquette academy in Bucharest, the House seeks to uphold its historic commitment to social duty and international goodwill. The heir to the barony is their nephew, Baron Mihai Alexandru Crăciun, who will in time become the 13th Baron.
**About the Barony of Brattleby**
The Barony of Brattleby is one of England’s most ancient feudal lordships, granted by William the Conqueror to his follower Colswein of Lincoln in AD 1066. Its existence and holdings are first recorded in the Domesday Book of 1086, which details 56 lordships held by the 1st Baron. Over nearly a millennium, the barony has been held by some of the most consequential figures in English history, including Nichola de la Haye, the celebrated 13th-century defender of Lincoln Castle; Henry of Grosmont, 1st Duke of Lancaster and a pre-eminent diplomat of the Hundred Years’ War; and his successor, the powerful royal prince John of Gaunt. The title's modern standing was formally acknowledged in *The London Gazette* under Notice ID 4158083 on 9 September 2022.
**Notes to Editors** - The Barony of Brattleby was granted by William the Conqueror in AD 1066 and is recorded in the Domesday Book (1086). - The modern succession of the title is officially recognised in *The London Gazette*, Notice ID 4158083, published 9 September 2022. - Distinguished former holders of the barony include Nichola de la Haye (5th Baroness), Henry of Grosmont (10th Baron), and John of Gaunt (11th Baron). - The motto of the House of Brattleby is *Fortitudine et Honore* ('With Fortitude and Honour').
**Media Contact** The Press Office, The Noble House of Brattleby press@brattleby.com