The Blackham Baronetcy, of London, was a title in the Baronetage of England. It was created on 13 April 1696 for Richard Blackham, a woollen manufacturer and a Turkey merchant. The title became extinct on the death of his son, the second Baronet, in 1728.
Blackham baronets, of London (1696)
References
Blackham baronets Wikipedia(Text) CC BY-SA