He is one among many architects and builders who gave a characteristic shape to the town at the turn of the 19th and 20th centuries, dominated by eclectic buildings with various styles, including Art Nouveau or Modernism.

Ernst Friedrich Wilhelm "Fritz" Weidner was born on 13 March 1863 in Vordamm (today part of Drezdenko, Poland).

This reduced academic education was not enough to obtain the title of architect, therefore, Fritz Weidner presumably followed courses in other universities of the German capital.

In 1895, he arrived alone in Bromberg, where he worked as a manager of the local branch of the Goodson company which contract was to supervise the construction of city sewerage network.

[2] Three years later, thanks to the thriving economic situation in Bromberg offering a profusion of career opportunities, he decided to settle in the city.

The latter was awarded as the most beautiful new building in 1912, in a competition organized by city authorities (together with Rudolf Kern's house at 20 January 1920 Street).

[3] Weidner was at the origin of the first building in Bydgoszcz using reinforced concrete: designed by Berlin architect Otto Walther, it stands today at 15 Gdańska Street.

His work also includes two large edifices in downtown district: the Mix Ernst tenement at 10 Gdańska Street and the Brandt Department Store at 4 Theatre square, today the local seat of Bank Pekao.

However, archived records on the case do not make it clear whether the threat was considered positively; the architect was probably only admonished and a more intensified control of his work was applied.

Finally, in 1901, Weidner's work entered an Art Nouveau architectural phase, where he multiplied the use of various decorative motifs, playing with asymmetry on the frontages of his projects.

If he creates according to established rules (...), he ceases to be an artist, he becomes a craftsman (...)" Eventually, after 1905, he developed some liking for modernism, where stucco and basic decorative elements were reduced to a minimum on a facade.

Due to his age, he was not admitted to active service and was sent to the Reichsmarine, serving as an architect: he was stationed in Flanders to rebuild war damaged buildings on the coast.

Albeit his positive expectations, the unstable economic situation combined with the outflow of German capital was not favourable for city construction investments.

During World War II, Fritz and Alice moved to their daughter's house, Margarete Bublitz, in Wysoka, near Schneidemühl (Piła).

In Bromberg, the family lived at 73 Dworcowa Street, in the flat which initially belonged to Friedrich Herold, grandfather of Fritz Weidner.