 Conrad Fabritius was born on 8 August 1731 in Copenhagen, the son of Michael Fabritius (1697-1746) and Anna Maria Köster (1705-75).His father was a co-founder of Fabritius & Wewer, a leading trading house in Copenhagen, but died when Conrad Fabritius was just 15 years old.His nother was later married to her late husband's business partner, Johan Friederich Wewer, who continued Fabritius & Wewer.