As a result, in 1857, the Liberals returned to power and Frère-Orban became once more Minister of Finance in the cabinet of Charles Rogier, whom he succeeded to become the 11th Prime Minister in 1868.
Sonuç olarak, 1857'de Liberaller iktidara döndüler ve Frère-Orban, 1868'de 11. Başbakan olmayı başaran Charles Rogier kabinesinde bir kez daha Maliye Bakanı oldu.