Pratap Singh Prabhakar
Pratap Singh Prabhakar (1740 – November 1791) was the first ruler of the princely state of Alwar. He was the Rao Raja of Alwar from 1775 until his death in 1791. His father was Rao Mahabat Singh, Thakur of Macheri. He was succeeded on the throne by his adoptive son and distant relative Bakhtawar Singh Prabhakar Bahadur.