Nicholas Hankey Smith

https://en.wikipedia.org/wiki/Charlotte_Turner_Smith - mother's wikipedia entry

https://en.wikipedia.org/wiki/Nicholas_Hankey_Smith

Nicholas Hankey Smith (1771–1837) Son of Benjamin and Charlotte Smith, the former a rich West Indian Merchant, the latter a celebrated author. He was a Persian Ambassador and British Resident in the Persian Gulf commanding the Presidencies of Bushiu, Baghdad and Bussoia, married Anni Petroose, daughter of Khan Petroose, a Persian Minister and grand niece to the late King Fullah Alli Shah.

British Political Resident in the Persian Gulf: Oct 1792-Oct 1798, and May 1807-July 1808 (officially until March 1811) - https://books.google.com.mt/books?id=dqKxjysjzcoC&pg=PA267&lpg=PA26...

https://books.google.com.mt/books?id=GT_IEjzj_44C&pg=PA779&lpg=PA77...

http://www.britishlistedbuildings.co.uk/en-279367-deerbolts-hall-st...