Brihadratha Maurya was the last ruler of the Maurya Empire. He was the ruler from 187 BC-180 BC. He was killed by his general Pushyamitra Sunga in 180 BC.
During his rule, the Mauryan Empire got smaller. Using this, his general Pushyamitra Sunga defeated Brihadratha with a huge army. Brihadratha Maurya died in the war. After his death, Pushyamitra Sunga founded the Sunga dynasty controlling the Mauryan territories.