Palkonic (colonel) Liakhov, the Russian army officer was sent to Iran by the Russian court as the commander of central Cossack brigade under Mohammad Ali Shah. He did not feel himself responsible to Iranian authorities, even to the minister of war, and received his orders from St. Petersburgh. He became the military governor of Tehran in June 22, 1908. He bombarded the Majlis by Shah's orders, and a Russian subject at the court, Sergei Shabshal, and M. de Hartwigs' recommendation, in June 23, 1908. This event led to the death of many majlis members. Some were dispersed. The Cossack forces entered the majlis and ruined its building. Mohammad Ali Shah expressed his appreciation to Liakhov for his efforts.
Liakhov was at Mohammad Ali Shah's service until July 19, 1909, but subsequent to occupation of Tehran by Mojahedan, he surrendered himself, and was protected by Ali-Qolikhan Sardar Assad and Mohammad Vali Khan SepahSalar Tonokaboni, the triumphant constitutionalists and was put under Yousef khan Amir Mojahed's control, to make sure he would come to no harm on the Constitutionalist's side. He resigned from his office and returned to St. Petersburg in 1909. Following 1917 Russian Revolution, he joined General Nikin and subsequent to Tsar's fall, he fled to Batoum and was murdered by three Georgians.