ary ▁at ▁Te h ran ▁in ▁ 1 8 9 4 ▁although ▁despite ▁being ▁a ▁Pers ian ▁scholar ▁and ▁speaking ▁the ▁language ▁flu ently ▁he ▁made ▁little ▁impression ▁either ▁in ▁Te h ran ▁or ▁on ▁his ▁super iors ▁in ▁London . ▁He ▁left ▁Pers ia ▁in ▁March ▁ 1 9 0 0 , ▁by ▁which ▁time ▁ow ing ▁to ▁the ▁ill ness ▁of ▁his ▁wife ▁El la ▁he ▁had ▁with dra wn ▁from ▁social ▁life ▁and ▁the ▁leg ation ▁was ▁in ▁a ▁de pressed ▁and ▁dis organ ised ▁state . ▁From ▁ 1 9 0 0 ▁to ▁ 1 9 0 3 ▁he ▁served ▁as ▁British ▁Amb assador ▁to ▁Spain , ▁and ▁from ▁ 1 9 0 3 - 1 9 0 6 ▁as ▁Amb assador ▁to ▁the ▁United ▁States . ▁He ▁was ▁appointed ▁a ▁C SI ▁in ▁ 1 8 8 1 ▁kn ight ed ▁a ▁K CI E ▁in ▁ 1 8 8 8 ▁and ▁a ▁K C SI ▁in ▁ 1 8 9 4 ▁and ▁appointed ▁a ▁GC M G ▁in ▁ 1 9 0 0 . ▁ ▁Liter ary ▁works ▁From ▁ 1 9 0 6 , ▁after ▁his ▁return ▁to ▁England , ▁he ▁devoted ▁his ▁time ▁to ▁writing . ▁ ▁He ▁also ▁published ▁the ▁bi ography ▁of ▁his ▁father , ▁General ▁Henry ▁Mar ion ▁Dur and ▁( 1 8 1 2 – 1 8 7 1 ), ▁and ▁also ▁had ▁amb itions ▁as ▁a ▁novel ist , ▁often ▁with ▁his ▁wife , ▁Lady ▁E . ▁R . ▁Dur