"... Colonel Macdonald had with him in Persia his son as commander of the escort, Malcolm's second cousin, Captain John Campbell, [20] as his second assistant, and Captain Benjamin Shee, the bastard of Malcolm's sailor brother, Sir Pulteney Malcolm, attached to the British military mission.
...
[20] See W.N. Medlicott, The Congress of Berlin and After: A Diplomatic History of the Near Eastern Settlement (London, 1938; Frank Cass, 1963), p. 119" :

p. 185 :
http://opac.lib.idu.ac.id/unhan-ebook/assets/uploads/files/e0dcd-061.in-defence-of-british-india.pdf

More informations on Captain Benjamin Shee can be viewed in the footnote at:

https://books.google.com/books?id=cNXdNrH6L-oC&lpg=PA55

"Captain Benjamin Shee, of the 47th Madras N. Infantry, is to command the British detachment in Persia, resigned by Colonel Pasmore." Limerick Chronicle Limerick, Republic of Ireland
30 Nov 1836.

"Obituary ...
East Indies.—Nov. 22. At Belgaum, Major Benjamin Basil Shee, of the 47th Madras N. I." :

www.google.it.ao/books?id=o7xbvzsPOewC&pg=PA670

"Benjamin Basil Shee, Knight of the Lion and Sun of Persia (1803–1840)" Article in Iran · November 2017:

https://www.researchgate.net/publication/322793506_Benjamin_Basil_Shee_Knight_of_the_Lion_and_Sun_of_Persia_1803-1840

"Casualties ... 47th Nat. Inf. Major Benjamin Basil Shee 22nd Dec. 1840Belgaum" :

https://books.google.com/books?id=zwYLAQAAIAAJ&pg=RA2-PP25