Jung Bahadur Rana, was accused in 1846 of plotting with the junior queen to become prime minister, by putting the queen's son on the throne. His original name was Bir Narsingh Kunwar but he was commonly known as Jang Bahadur, a name given to him by his maternal uncle Mathabar Singh Thapa.
Jung Bahadur Rana in 1887
Jung Bahadur
Jung Bahadur Statue in Tundikhel, Kathmandu
Portrait by Bhajuman Chitrakar, 1849. Given to the East India Company by the sitter in 1850, in London. It later hung in the office of the Foreign Secretary until removed by Jack Straw, & allocated to the British Library, where it remains
Mathabar Singh Thapa was the Prime Minister of Nepal and the Commander-In-Chief of the Nepalese Army from 25 December 1843 – 17 May 1845, until he was murdered by his nephew Jung Bahadur Rana. He was the first Mukhtiyar to title himself as a Prime Minister, as per the British convention. He was the nephew of Bhimsen Thapa, who was sentenced to prison after falsely being accused of killing King Rajendra's six months old son. Mathabar Singh Thapa fled to Shimla after the execution of Bhimsen Thapa, to avoid his own execution as he was Bhimsen's nephew. Four years later, the second queen of Rajendra, Queen Rajya Lakshmi, called him back and installed him as the Mukhtiyar, paving the way for him to eventually title himself as the Prime Minister. Mathabar Singh, however, enraged the queen by refusing to make her son, Ranendra Bikram, the king. The queen, in turn, had him shot by his own nephew Janga Bahadur Rana and thereby making him the last dynast of the Thapa dynasty. Mathabir Singh Thapa was killed by his own nephew.
First Nepalese Head of Government with title Prime Minister and crown, Mathavar Singh Thapa
Portrait of Colonel Mathabar Singh Thapa (1831)
Mathabarsingh Thapa
Portrait of Mathabar Singh Thapa in National Museum of Nepal, Chhauni