Celsius family
The Celsius family is a Swedish family associated with mathematics, astronomy, theology, and the Celsius temperature scale.
Last updated August 26, 2026
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Overview
The Celsius family was a Swedish family whose members became prominent in academic, ecclesiastical, and scientific life from the seventeenth through the eighteenth centuries. The family originated with Nicolaus Magni Travillagæus, later known as Alptaneus, who served as vicar of Ovanåker parish in Gävleborg County. His son Magnus Celsius adopted the name Celsius, a Latinized form derived from celsus, meaning “mound,” in reference to Högen, the vicarage and childhood home associated with the family. The family’s historical importance is most closely connected with Magnus Celsius and his descendants. Magnus Celsius was a mathematician and astronomer, while later generations included scholars and clerics who held positions in Sweden’s academic and ecclesiastical institutions. Anders Celsius, the best-known member of the family, was an astronomer and physicist whose work on temperature measurement ultimately gave the Celsius temperature scale its name. The family’s wider network also included Nils Celsius, Johan Celsius, Olof Celsius the Elder, and Olof Celsius the Younger. A branch of the family received noble status on 9 November 1756. The ennobled line adopted the name von Celse and descended from the children of Olof Celsius the Elder. That branch later became extinct in 1838 following the death of Lieutenant-Colonel Olof von Celse. The Celsius family is therefore not a commercial brand or operating business. It is a historical family designation used to identify a Swedish lineage and its notable members. Its public legacy rests on the contributions of those members to astronomy, mathematics, theology, and education, especially Anders Celsius’s enduring association with the modern temperature scale. No current headquarters, operating markets, corporate owner, website, listed status, or commercial product portfolio is established in the supplied reference material.
History
The Celsius family traced its ancestry to Nicolaus Magni Travillagæus, later called Alptaneus, who lived from 1577 to 1658 and served as vicar of Ovanåker parish in Gävleborg County, Sweden. His son Magnus Celsius, born in 1621, adopted the surname Celsius. The name was a Latinized form connected with celsus, meaning “mound,” and referred to Högen, the vicarage and childhood environment associated with the family. Magnus Celsius became known as a mathematician and astronomer. His descendants and relatives continued the family’s association with scholarship and the Swedish church. Notable members included Nils Celsius, Johan Celsius, Olof Celsius the Elder, Olof Celsius the Younger, and Anders Celsius. Their activities covered mathematics, astronomy, theology, and ecclesiastical life. Anders Celsius, who lived from 1701 to 1744, became the family’s most internationally recognized member because of his work in astronomy and temperature measurement. The Celsius name later became attached to the Celsius temperature scale, although the family itself was not a commercial enterprise. The family’s historical significance comes from the achievements and institutional roles of its members rather than from a unified organization or business. On 9 November 1756, a branch descended from the children of Olof Celsius the Elder was ennobled under the name von Celse. This noble branch continued for several generations but became extinct in 1838 with the death of Lieutenant-Colonel Olof von Celse. The Celsius family is consequently documented as a historical Swedish lineage, with its legacy preserved through biographies, scientific history, and the continuing international use of the Celsius temperature scale.
- 1838
Extinction of the von Celse branch
[1]The ennobled von Celse branch became extinct with the death of Lieutenant-Colonel Olof von Celse.
- 1756
A family branch is ennobled as von Celse
[1]On 9 November 1756, the children of Olof Celsius the Elder and their branch of the family were ennobled under the name von Celse.
- 1701
Birth of Anders Celsius
[1]Anders Celsius was born into the family. He later became an astronomer and physicist and gave his name to the Celsius temperature scale.
- 1621
Birth of Magnus Celsius
[1]Magnus Celsius was born. He later became a mathematician and astronomer and adopted the Celsius name associated with Högen, his family’s vicarage and childhood home.
- 1577
Birth of Nicolaus Magni Travillagæus
[1]Nicolaus Magni Travillagæus, later known as Alptaneus, was born. He became the vicar of Ovanåker parish and is identified as the ancestor from whom the Celsius family descended.
Products and positioning
A historical Swedish family lineage rather than a commercial brand, recognized primarily for its scholarly, ecclesiastical, and scientific members.
Sources1 sources
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