(April 15, 1924 – April 24, 2011), popularly known as Madame Ngô Đình Nhu or simply Madame Nhu, was considered the First Lady of South Vietnam from 1955 to 1963. She was the wife of Ngô Đình Nhu, brother and chief adviser to President Ngô Đình Diệm. As Diệm was a lifelong bachelor, and because she and her family lived in the president's Independence Palace, she was considered to be the First Lady.