The most infamous ruler during the Roman Empire's decline was Emperor Nero, who ruled from 54 to 68 AD. His reign is often remembered for its tyranny, extravagance, and persecution of Christians. Nero is infamously associated with the Great Fire of Rome in 64 AD, which led to widespread destruction and accusations that he fiddled while the city burned. His misrule, marked by extravagant spending and artistic pretensions, alienated the Roman elite and people. Ultimately, his reign ended in chaos—facing revolts and losing support, he committed suicide, marking the beginning of a period of instability and civil wars known as the Year of the Four Emperors.