The Kingdom of Amber, also known as Kingdom of Dhundhar, and Jaipur State, was located in the north-eastern historic Dhundhar region of Rajputana and was ruled by the Kachwaha Rajput clan. It was established by Dulha Rai, possibly the last ruler of the Kachchhapaghata dynasty of Gwalior who migrated to Dausa and started his kingdom there with the support of Chahamanas of Shakambhari in the 12th century. Mostly through 12th to 15th century, the kingdom faced stagnation, sources were scarce. Under its ruler, Raja Chandrasen Amer became a Sisodia vassal and fought in the Battle of Khanwa under Raja Prithviraj Kachhwaha.