Daily entries from the 17th century London diary
Son of James (sen.) and brother of James (jun.) and Peter.
Per L&M Companion:
(1632 - 1712) third eldest son of James Houblon Sr. ( http://www.pepysdiary.com/p/8398.php ); kt., 1689, was Lord Mayor 1695-6, and the first Governor of the Bank of England (1674-7). He was an Admiralty Commissioner 1694-9.
Current Banknotes, Sir John Houblon 1632-1712
http://www.bankofengland.co.uk/banknotes/current/houblon.htm