Jorge de Alviez entered the Royal College of Nobles in 1797 with his two older brothers. He studied arts until 1801, when he returned to Portalegre. He went to Lisbon with his family in 1801, due to the War of the Oranges. Having finished in the Army as Cadet, he was appointed Colonel of the Militia Regiment of Crato on 24 June 1804. In 1807 he was chosen to be Superintendent of stud farms of Portalegre, the same function his father had. The Militia Regiment of Crato was discharged, because of the Militia Reform of October 1807, in 1808 he was put in charge the Volunteer Regiment of Portalegre, created by the Junta of Portalegre, so they could help fight the French. With the transfer of the Volunteer Regiment to the Army in 1809, he was appointed commander of the 1st Battalion of Caçadores with the rank of Lieutenant-Colonel.
In 1817, due to the organization of the Division of Volunteers of the Prince, being transferred to Brazil to help with the Conquest of Montevideo he was given the rank of Field Marshal. In 1818, he was Governor of Montevideo. He did the whole Campaign of Banda Oriental, distinguishing himself in the Battle of Paço de Arenas in September 1819. In 1821, in Brazil, he was given the rank of Lieutenant-General, due to his appointment as Governor of Arms of the Court and Province of Rio de Janeiro, controlling the riots which had been occurring because of the departure of King John VI and the court. after his failed rebellion|Prince Pedro orders the Portuguese officer Jorge d'Avilez to return to Portugal after his failed rebellion. On 5 June 1821, as commander of the soldiers in Rio de Janeiro, he directed the ultimatum to Prince Pedro that he had to swear the foundations of the Constitution, dismissed the Count of Arcos and nominated a governing junta. In October he demanded again that Prince Pedro publicly announce his adherence to the decisions of the Cortes gathered in Lisbon. Prince Pedro obeyed and decided, on a first impulse, to return to Europe. But in January 1822 he publicly declared that he had decided to stay in Brazil, a fact known as Dia do Fico. Jorge de Avilez resigned from the Government of Arms and, fearing an attack by Brazilian troops, he retreated to Praia Grande, in Niterói, which he fortified but was later expelled by the Prince Regent. The Portuguese Division embarked in February, arriving at Lisbon in May 1822.
Liberal Wars
Jorge de Avilez was elected deputy in 1822. In 1823, he was nominated by the Cortes as Commander-in-Chief of the Portuguese Army, to counter the movements of Prince Miguel. He could not prevent the coup d'état known as the Vilafrancada, which ended the first liberal period, reestablishing the absolutist regime. A prisoner in the Castle of São Jorge, he was transferred to the Tower of Belém. Judged, he was dismissed from his rank of Lieutenant-General and condemned to a year of imprisonment in Castelo de Vide. In June 1827, during the regency of the Infanta Isabel Maria of Portugal, he was exonerated and returned to his post. With the return of Prince Miguel, he asked permission to go to Portalegre, but was arrested again in June 1828 and sent to São Julião da Barra Fortress. In 1832 he was transferred to Almeida and later to Bragança, from where he managed to escape to Spain. His wife was arrested and held in the Tower of Belém, in the Limoeiro and in the Cadeia do Aljube. The diplomatic corps in Lisbon demanded his release and succeeded. King Pedro IV reconciled with Jorge de Avilez at the end of the civil war, and appointed him to Military Governor of the Court and Province of Extremadura, with the rank of Lieutenant-General. With the reorganization of the Army he was given the command of the 1st Military Division, being later transferred to the 7th, for political reasons. Named Peer of the realm in 1835, he was given the title of Viscount of Reguengo. He joined the Setembrismo movement in 1836. He was appointed senator, according to the Constitution of 1838. In April 1838 he was awarded the title of Count of Avilez.
