Jacob Tostrup

Jacob Ulrich Holfeldt Tostrup (1 July 1806 – 31 January 1890) was a Norwegian jeweler, goldsmith and silversmith.

He was the son of infantry captain Nicolay Tostrup (1768–1858) and his wife Thale Margrethe Resen Holfeldt (1779–1860).

[2] In 1832, he founded the jewelers firm J. Tostrup, gradually expanding his business with more production equipment and better localities.

J. Tostrup received the title royal court jeweler, and Jacob Tostrup received the Norwegian King's Medal of Merit in gold (Kongens fortjenstmedalje) and was appointed a Knight of the Royal Norwegian Order of St. Olav for his work as a goldsmith.

Prytz, a skilled architect, was one of the designers behind the new store, Tostrup Yard (Tostrupgården), built 1893–1898 at Karl Johans gate 25, next to the Norwegian Parliament.