Conversation so far:
Where was Matthew Boulton born?
Matthew Boulton was born in Birmingham, England.
Where did Matthew Boulton grow up?
The business of Matthew Boulton's father, also name Matthew, prospered after young Mathew Boulton's birth, and the family moved to the Snow Hill area of Birmingham.

Question: Did he have any siblings?
Self-contained rewrite: Did Matthew Boulton have any siblings?