Treschow family

1659–1719), an industrialist who ran a shipping company, a sawmill and a papermill in Oslo, and Herman Treschow (1665–1723), who was his brother's general manager in Trondheim.

However, as most of the family members were Norwegian subjects, persons born after the 1821 Nobility Law were not considered as noble in Norway.

The family's most prominent living member, Mille-Marie Treschow, would have forfeited her noble status by marrying a commoner if official nobility still had existed.

The agnatic descendants of Michael Treschow are nevertheless included in the Yearbook of the Danish Nobility (Danmarks Adels Aarbog) which is published by a private organisation.

[6] Family members previously used various arms, including one with a clog, referring to the occupation of their ancestor (Nissen and Aaase, p. 143).

In the 19th century, Michael Treschow for himself and his descendants adopted a coat of arms which is nearly identical to that of the German Uradel family of Tresckow.