Quezon City is the former capital (1948–1976) and the most populous city in the Philippines. Located on the island of Luzon Quezon City (popularly known to Filipinos as QC) is one of the cities and municipalities that make up Metro Manila the National Capital Region. The city was named after Manuel L. Quezon the former president of the Commonwealth of the Philippines who founded the city and developed it to replace Manila as the country's capital.