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David Kenneth Roy Thomson, 3rd Baron Thomson of Fleet, is a Canadian-British media magnate and art collector, recognized as Canada’s wealthiest individual. As of June 2024, his net worth is estimated at $61.3 billion USD, ranking him 22nd globally.

  • Full Name: David Kenneth Roy Thomson
  • Date of Birth: June 12, 1957
  • Place of Birth: Toronto, Ontario, Canada
  • Nationality: Canadian and British
  • Education: Upper Canada College; Selwyn College, Cambridge (MA in History)
  • Career Beginnings: Junior Associate at McLeod Young Weir
  • Notable Roles: Chairman of Thomson Corporation; Chairman of Thomson Reuters
  • Spouses: Mary Lou La Prairie (1988–1996); Laurie Ludwick (2000–2006)
  • Partners: Kelly Rowan (2007–2008); Severine Nackers (2014–present)
  • Children: Seven
  • Net Worth: $61.3 billion USD (as of June 2024)
  • Major Achievements: Oversaw the merger of Thomson Corporation and Reuters; Extensive art collection
  • Residences: Toronto, Canada; London, UK

David’s upbringing was marked by privilege and a strong emphasis on education. He attended Upper Canada College and later Selwyn College, Cambridge, where he earned a Master of Arts in History in 1978.

His wealth primarily stems from his holdings in Thomson Reuters and various investments through the family-owned Woodbridge Company. Thomson’s assets include multiple residences in Toronto and London, as well as an extensive art collection featuring masterpieces by prominent artists.

Personal Life and Relationships

Thomson’s personal life has been marked by multiple relationships. He has seven children from four different mothers. With his first wife, Mary Lou La Prairie, he has two daughters: Thyra Nicole and Tessa Lys. His second marriage to Laurie Ludwick produced a son, Benjamin. He also has a daughter, Braelyn, with actress Kelly Rowan. Since 2014, he has been in a relationship with Severine Nackers, a former Sotheby’s employee, with whom he has three daughters: Ottilie, Elodie, and Idalie.

Charitable Work and Legacy

Thomson is a patron of the Art Gallery of Ontario and has made significant contributions to the arts. His philanthropic efforts extend to various cultural and educational institutions, reflecting his commitment to enriching society through the arts. Thomson’s legacy is marked by his leadership in the media industry and his dedication to art collection and philanthropy.

His family’s prominence in the media industry profoundly influenced his career trajectory.

Beyond his corporate achievements, Thomson is an avid art collector, owning works by renowned artists such as Rembrandt, J.M.W. Turner, and Egon Schiele. He possesses the world’s largest collection of paintings and drawings by John Constable.

Career Beginnings and Key Milestones

Thomson began his career as a junior associate at McLeod Young Weir in Toronto. Seeking to establish his own path, he founded Osmington Incorporated, a real estate firm operating independently of the Thomson empire. Osmington focuses on acquiring and managing commercial real estate assets for institutional investors. In 2010, the company sold its stake in eight retail properties to the Canada Pension Plan for $336 million.

Thomson resides in Toronto’s Rosedale neighborhood, where he has expanded his home to accommodate his growing art collection. He maintains a low public profile and rarely gives interviews, focusing instead on his business and philanthropic endeavors.

His contributions to the art world include significant donations to the Art Gallery of Ontario.

Following his father’s death in 2006, Thomson became chairman of Thomson Corporation, inheriting the British title of Baron Thomson of Fleet. He played a pivotal role in the 2008 acquisition of Reuters, leading to the formation of Thomson Reuters, where he serves as chairman.

Net Worth and Lifestyle

As of June 2024, David Thomson’s net worth is estimated at $61.3 billion USD, making him the richest person in Canada and the 22nd richest globally.

Notable Works and Achievements

Under Thomson’s leadership, Thomson Reuters has become a global leader in news and information services. The company’s extensive portfolio includes financial data, legal research, and media assets. Thomson’s strategic vision has been instrumental in expanding the company’s global footprint and diversifying its services.

Early Life and Family Background

Born on June 12, 1957, in Toronto, Ontario, David Thomson is the eldest child of Kenneth Roy Thomson, 2nd Baron Thomson of Fleet, and Marilyn Lavis. He has a sister, Taylor Thomson, and a brother, Peter Thomson, a race car driver.

Osmington is also a major investor in FarmersEdge, a precision agriculture company, and a partner in True North Sports and Entertainment, owners of the NHL’s Winnipeg Jets.

Future Plans and Impact on Culture

Thomson continues to influence the global media landscape through his strategic leadership at Thomson Reuters and other ventures. While his plans remain closely guarded, there is speculation about further expansion into digital media and technology sectors. His investments in art and culture continue to shape the Canadian and international art scenes, ensuring his enduring impact on both industries and society.

Disclaimer: David Thomson: Age, wealth data updated April 2026.