Answer:
Maharajadhiraj Prithivi Narayan Shah was the last ruler of the Gorkha Kingdom and first monarch of Kingdom of Nepal. Prithvi Narayan Shah started the unification of Nepal. Shah proclaimed the newly unified Kingdom of Nepal as Asal Hindustan due to North India being ruled by the Islamic Mughal rulers. Wikipedia
Born: January 11, 1723, Gorkha Palace, Gorkha
Died: January 15, 1775, Devighat
Spouse: Queen Narendra of Nepal
Father: Nara Bhupal Shah
Mother: Kaushalyavati Devi
Coronation: 3 April 1743
Children: Pratap Singh Shah, Bahadur Shah of Nepal