House of Black & Co.
Merchant house in Copenhagen (VMM)
Black & Co. clearly had close ties to most other Copenhagen merchants and merchant houses (VMM) In the accounts of Ryberg, Niels for example, there is evidence of money going back and forth between the two businesses (Landsarkivet for Fyn: QB024. Frederiksgave Gods. 1765-1819. Etatsråd Rybergs private regnskab og industri foretagender. 1765-1819. 134) (VMM)
Likely that there is a connection to a Blach, Ole who was listed as a merchant in the 1728 register of Copenhagen inhabitants made upon the fire the same year. In this register, Kløcker, Herman Lengerken is listed as being Ole Blach's tenant. Ole Blach has two further male tenants, and the household comprises a total of 29 people http://www.hist.uib.no/kbh1728/
Later the name of the company is referred to as Black's widow