[3] In 1844/45 Saltzwedel was a Geheimrat, from 1846 to 1851 Regierungspräsident in Gumbinnen, and in 1847 head of the district administrative court in Königsberg.

He was the director of the East Prussian Poverty Commission and Commissioner of the Lithauische Friedensgesellschaft (Lithuanian Peace Society).

He was a mentor of Bethel Henry Strousberg concerning the financing of the East Prussian Southern Railway[4] and the head of its supervisory board.

[3] In 1867, Saltzwedel was elected as a member of the Parliament of the North German Confederation (until 1870) and the Preußisches Abgeordnetenhaus (until 1869).

Saltzwedel was married to Auguste Zimmermann (19 November 1822 in Marggrabowa – 9 July 1911 in Königsberg).