Russian: Гюлистанский договор, romanized: Gyulistansky dogovor; Persian: عهدنامه گلستان, romanized: Ahdnāme-ye Golestān) was a peace treaty concluded between...

undertaking was The Treaty of Gulistan: Гюлистанский договор; Persian: عهدنامه گلستان), which was prepared by the ambassador with the help of the British...