The BRP Quezon (PS-70) was one of two Rizal class ships in service with the Philippine Navy. She was formerly a USN Auk class minesweeper produced during World War II, and was later on classified as a patrol corvette protecting the vast waters of the Philippines. Along with other ex-World War II veteran ships of the Philippine Navy, she was considered one of the oldest active fighting ships in the world, up until its decommissioning on 1 March 2021 after serving a total of 77 years, of which 53 years were with the Philippine Navy.