Eshaq overcame extraordinary odds to establish himself as a leader of the Qaraei. The son of a Persian servant by the name of Mohammad Khoo to the supreme chiefNajaf Qoli Khan Qara Tatar, the chief of the Qaraei tribe. Eshaq inherited a social position that was inferior to even the lowest member of a military tribe. His father gained the attention of the leader of the Qaraei tribe and was appointed yuzbashi or centurion. Consequently, Eshaq was granted the position of Yessawul to the chief and used this position to convince the chief of a need for a caravansarai in the then small village of Zaveh. While undertaking this project the ambitions of Eshaq began to manifest themselves. As Eshaq's project grew, he slowly converted the caravansarai into a fort while simultaneously fomenting quarrels and divisions within the tribe through various intrigues. His plan culminated in Najaf Qoli's being murdered by his own officers with the chief's sons fleeing Khorasan. Soon afterward, he married the daughter of Najaf Qoli and entered into an alliance with Ahmad Shah Durrani. These maneuvers gained him the leadership of the tribe. As the chief of the tribe, he managed to transform Zaveh into a prosperous and safe district, while also making a fortune through farming, leasing camels to merchants, and developing an export/import trade. Eshaq Khan’s allegiance to Tehran. However, he used this opportunity and joined his service and assumed the positions of Sardar and Vazir.
Downfall
The influence of Eshaq completely overshadowed that of Mohammad Vali, a state of affairs that aroused Eshaq's ambitions. He initiated a conspiracy with the chiefs of Khabushan, Radkan, Chenaran, Qayen, and Tabas to unseat the governor and assume the reins himself. The plan was successful and Mohammad Vali was placed under house arrest. After plundering Mashhad, Eshaq's co-conspirators began quarreling over the spoils and challenging Eshaq's right to accession. Eshaq assembled those still loyal to him and restored Mohammad Vali to office. In an attempt to make amends he gave the governor one of his daughters in marriage. The result of this marriage was a boy Jafar Qoli Mirza Qajar. Eshaq undertook a visit to the court in Tehran where he convinced the Shah that Mohammad Vali was incompetent. Fath Ali accordingly issued a farman declaring Eshaq as the Hakim of Mashhad, thus relegating the shahzadeh to the position of ornament. In his turn, Mohammad Vali sneaked off to Tehran. There, he represented Eshaq to be an ambitious and dangerous man whose progress needed to be checked. The Shah became convinced and ordered Mohammad Vali to execute Eshaq. Finally on 8 July 1816 he and his eldest son, Hasan Ali Khan Qaraei-Torbati, were strangled by the order and in the presence of Mohammad Vali Mirza Qajar. The executions, however, only exacerbated the situation, forcing Fath Ali Shah to remove his son from the post of governor of Khorasan and replace him with his other brother Hasan Ali Mirza Qajar.
