Mirza Taghi Khan Amir Kabir, was the young prince Nasser o-Din's advisor and constable. With the death of Mohammad Shah in 1848, Mirza Taqi was largely responsible for ensuring the crown prince's succession to the throne. When Nasser o-Din succeeded to the throne, Amir Nezam was awarded the position of prime minister and the title of Amir Kabir, the Great Ruler. Iran was virtually bankrupt, its central government was weak, and its provinces were almost autonomous. During the next two and a half years Amir Kabir initiated important reforms in virtually all sectors of society.