When he was only three years old, his family moved to Rio de Janeiro, where the court of the prince regent of Portugal, future king John VI, was located.

Eusébio de Queirós graduated with a bachelor's degree in legal and social sciences from the Faculty of Law in Olinda in 1832.

As this position was incompatible with that of State Councilor, he then asked for retirement, which was granted by Pedro II in a decree dated March 21, 1864.

Eusébio de Queirós Matoso Ribeiro married Dona Raquel Francisca Castro Carneiro da Silva in Quissamã.

She was the daughter of his political ally José Carneiro da Silva, the first Baron and first Viscount of Araruama, leader of the Conservative Party in Rio de Janeiro.

His daughter Catarina de Queirós Matoso Ribeiro married, in São Paulo, Rodrigo Augusto da Silva, son of his political ally José Manuel da Silva, Baron of Tietê, leader of the Conservative Party in São Paulo.