 Final crisis of the reign ( 1863-1868 ) After the Progressive Biennium, the Constitution of 1845 was re-established and the Liberal Union remained in power under O'Donnell ( 1856-1863) Narváez returned, in a quiet period, with the establishment of the centralised state order and after halting the disentailment process of Madoz.
<fluency>  Final crisis of the reign ( 1863-1868 ) After the Progressive Biennium, the Constitution of 1845 was re-established and the Liberal Union remained in power under O'Donnell ( 1856-1863) Narváez returned, in a quiet period, with the establishment of the centralised state order and after halting the disentailment process of Madoz.
 Final crisis of the reign ( 1863–1868 ) After the Progressive Biennium, the Constitution of 1845 was re-established and the Liberal Union remained in power under O'Donnell ( 1856-1863) Narváez returned, in a quiet period, with the establishment of the centralised state order and after halting the disentailment process of Madoz.