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De Weck is a patrician family of Fribourg whose members have played prominent roles in Swiss politics, military affairs, public administration, business, culture and academia.

Last updated August 31, 2026

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Overview

De Weck is the name of a prominent family from Fribourg, Switzerland, rather than a conventional commercial brand. The family traces its origins to the fourteenth century and became established in the political and social life of Fribourg over subsequent centuries. Its early founder was Pierre du Borjat, also known as Cugnyet, who became a citizen of Fribourg in 1507 and adopted the Germanized surname Weck. By the 1520s, members of the family were already represented in the governing bodies of the city. The family’s historical influence was closely connected with Fribourg’s patriciate and with military service. Numerous members served in the armies of France and other European states. A Protestant branch based in Bern existed for a period but became extinct during the seventeenth century. In 1782, the family received authorization to use the noble particle “de,” marking the form of the name now most commonly associated with the family and reinforcing its standing within Fribourg’s patrician order. During the nineteenth and twentieth centuries, members of the family continued to occupy senior positions in cantonal government, the military and other public institutions. De Wecks held the office of Councillor of State of Fribourg on six occasions, and several family members also served in the Swiss Council of States. The family maintained a visible presence in civic life while also extending into fields such as diplomacy, banking, journalism, medicine, art, sport and higher education. It built and retained several mansions in Fribourg, reflecting its historical social position. The family’s modern profile is diverse. Philippe de Weck became chief executive and later president of UBS, while Roger de Weck led the Swiss Broadcasting Corporation. Other notable family members include ambassador René de Weck, immunologist Alain de Weck, artists Antoinette de Weck-de Boccard and Eugène de Weck, footballer and parliamentarian Edmond de Weck, and Olivier de Weck, an academic specializing in aeronautics, astronautics and engineering systems. Many contemporary members are reported to work in the legal profession. Because De Weck denotes a historic family and surname rather than a documented consumer, corporate or product brand, conventional brand attributes such as product lines, marketing campaigns, revenue, ownership structure and stock-market listing do not apply or are not documented in the supplied reference material.

History

The De Weck family is associated with Fribourg and has been part of the city’s political and social history for centuries. Its origins are traced to the fourteenth century, when Pierre du Borjat, known as Cugnyet, became the ancestor of the family. After obtaining citizenship in Fribourg in 1507, he Germanized his name to Weck. The family’s presence in the city’s governing institutions expanded during the early sixteenth century, and by the 1520s several Wecks held civic offices. Military service became another important element of the family’s history. Members served in the armies of France and other European countries, while the family also produced politicians, diplomats and administrators. A Protestant branch established in Bern disappeared in the seventeenth century. In 1782, the family gained permission to use the noble particle “de,” creating the form of the surname that became standard for the principal Fribourg line. In the nineteenth and twentieth centuries, De Wecks remained prominent in the government of the canton of Fribourg and in wider Swiss public life. Members served as Councillors of State of Fribourg six times, and some also represented the canton in the Swiss Council of States. The family owned and continued to retain several mansions, which served as material reminders of its patrician background. The family’s later history extends beyond politics. Its members became active in diplomacy, banking, broadcasting, medicine, art, sport, law and academia. René de Weck served as a Swiss ambassador to Romania. Philippe de Weck became a leading figure at UBS as chief executive and president. Roger de Weck served as Director-General of the Swiss Broadcasting Corporation. Alain de Weck was a professor of immunology and allergy at the University of Bern, while Olivier de Weck became a professor working in aeronautics, astronautics and engineering systems at MIT. The family also includes artists, a Swiss international footballer and participants in contemporary advocacy organizations. The available reference material presents De Weck as a historic family identity rather than as a commercial brand. It does not establish a separate operating company, product portfolio, advertising program, financial profile or current corporate owner.

  • 1782

    Authorization to use the noble particle

    [1]

    The family obtained the right to use “de,” formalizing the surname De Weck and emphasizing its patrician status in Fribourg.

  • 1520

    Presence in civic government

    [1]

    By the 1520s, members of the family were represented in Fribourg’s governing bodies.

  • 1507

    Citizenship in Fribourg

    [1]

    Pierre du Borjat became a citizen of Fribourg and adopted the Germanized name Weck.

  • Fourteenth-century origins

    [1]

    The family’s origins are traced to Pierre du Borjat, known as Cugnyet, who is identified as the forebear of the later Weck family.

  • Modern expansion across professions

    [1]

    During the nineteenth and twentieth centuries, De Wecks held positions in cantonal government, diplomacy, banking, broadcasting, medicine, the arts, sport and academia.

Products and positioning

A historic Swiss patrician family and surname associated particularly with Fribourg’s political, military, civic and professional life.

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