Deng died on 19 February 1997, aged 92 from a lung infection and Parkinson's disease. Even though his successor Jiang Zemin was in firm control, government policies maintained Deng's political and economic philosophies. Officially, Deng was eulogized as a "great Marxist, great Proletarian Revolutionary, statesman, military strategist, and diplomat; one of the main leaders of the Communist Party of China, the People's Liberation Army of China, and the People's Republic of China; the great architect of China's socialist opening-up and modernized construction; the founder of Deng Xiaoping Theory".