Bishop Johan Nordahl Brun's parents were Svend Busch Brun, born 2 Aug 1703 in Røros, Norway and dead in 1784 in Klæbu, Norway, and Mette Catharina Nordahl, born 15 Feb 1721 in Trondheim, Norway and dead 21 Nov 1790 in Bergen, Norway.
Svend Busch Brun's parents were Johannes Brun, born about 1669 in Trondheim, Norway and Anna Margretha Busch, born 4 Jan 1675 in Trondheim.
Mette Catharina Nordahl's parents were Lieutenant of the Guard Johan Knudsen Nordahl, presumed to have been born in Nordalen, Sunnmøre, Norway and Anne Catharine Svendsdatter Busch, born 16 Oct 1694 in Trondheim.
Johannes Brun's parents were Mathias Hansen(?) Brun, born either in Oldenburg, Germany or Holland, and Magdalena Lorentzdatter, born about 1640 in Trondheim.
Anna Margretha Svendsdatter Busch's parents were Svend Giertsen Busch, born 17 May 1645 in Trondheim, and his first wife, Johanne Ditlevsdatter, born in 1635 in Trondheim.
Lieutenant of the Guard Johan Knudsen's parents are not known.
Anne Catharine Svendsdatter Busch's parents are Svend Giertsen Busch (see above) and his second wife, Mette Marcusdatter Angell, born in 1673 in Trondheim.
Mathias Hansen(?) Brun's parents are unknown.
Magdalena Lorentzdatter is supposed to have been the daughter of President of Trondheim (a title akin to Mayor) Lorentz Frantzen.
Johanne Ditlevsdatter was the daughter of Detlof (Ditlev) Pedersen and Anne (?).
Mette Marcusdatter Angell was the daughter of Marcus Nissen Angell, presumably born in Angeln, South-Jutland, Denmark, and Catarina Hansdatter Jerne, born in Holstein, Germany.
Svend Giertsen Busch's parents were Giert Hansen Busch, born about 1613 in Trondheim, and Kathrine Johansdatter Brunsmann, born about 1615 in Trondheim.