[2] Lange was granted citizenship in 1785 as a master mason in Copenhagen.
He was appointed as director of Kjøbenhavns Brandforsikring (Copenhagen Fire Insurance) in 1795.
Large parts of the city were destroyed the same year in the Copenhagen Fire of 1795.
Lange was responsible for overseeing the tent camp on Nørre Fælled.
She was the daughter of ship captain Christian Pihl and Kirstine Nielsdatter Holm.