With the Restoration in 1814, a new Chamber of Peers was created, on the model of the British House of Lords. At first it contained hereditary peers, but following the July Revolution of 1830, it became a body whose members were appointed for life. The Second Republic returned to a unicameral system after 1848, but soon after the establishment of the Second French Empire in 1852, a Senate was established as the upper chamber. In the Fourth Republic, the Senate was replaced by the Council of the Republic, but its function was largely the same. With the new Constitution of the Fifth Republic which came into force on 4 October 1958, the older name of Senate was restored.