 She was the elder sister of former Philippine President Corazon S. Cojuanco-Aquino and Tarlac late Representative Jose Cojuangco, Jr..Her nephew, Benigno S. Aquino III was former President of the Philippines.She was the daughter of the late Representative Jose C. Cojuangco, Sr. of Tarlac and the late Demetria Sumulong of Antipolo, Rizal.