Aquino is a fourth-generation politician: his great-grandfather, Servillano "Mianong" Aquino, served as a delegate to the Malolos Congress; his grandfather, Benigno Aquino, Sr., held several legislative positions from 1919–44; and his parents were former President Corazon Aquino and former Senator Benigno "Ninoy" Aquino, Jr. Aquino is a member of the Liberal Party.