The Ambassador Husain Ali Beig

Date: early 17th century
Source: [1]
تصویر حسینعلی بیگ - سفیر صفوی در اروپا
According to Wikipedia, this is a portrait of the ambassador Husain Ali Beig who was sent by Shah Abbas I of Safavid dynasty to ask for the European assistance in the war against Ottomans.