He is the son of João da Silva Vieira and his wife, Maria Vieira Rocha and being the paternal grandson of André de Sousa Vieira and his wife, Teresa de Jesus da Silva.
Among many other things Vieira was a civil servant in Macau prior to his governorship, being the Chief of General Staff of the Independent Territorial Command of Macau from 1973 to 1974 and Deputy Secretary for Public Works and Communications of the Government of Macau from 1974 to 1975. He then became Director of the Arm of Engineering of the Army from 1975 to 1976, Chief of General Staff of the Army and by inherency a Member of the Conselho da Revolução from 1976 to 1978 being the Captain of April who lasted more in Portuguese politics, with an extensive curriculum of public service. He was also made Honorary Director of the Arm of Engineering of the Portuguese Army. After that he was the National Military Representative at the Supreme Headquarters Allied Powers Europe of the North Atlantic Treaty Organization in Belgium from 1978 to 1982, and then a professor and subdirector at the Instituto de Altos Estudos Militares from between 1982 and 1983 to 1984 and from 1984 to 1986 respectively. He served as the Minister of the Republic to the Autonomous Region of the Azores from 1986 to 1991. Finally, he served as the 138th Governor of Macau from 23 April 1991 to 19 December 1999 and being the last Portuguese Governor of Macau prior to the 1999 handover of the colony back to China. It became famous at the act of transition and the removal of the Portuguese flag when he put it, folded, next to his heart. Some had even bet then that it will not be this his last post. Since the handover, Vieira is a senior member of the Portuguese Golf Association. Before the handover he also founded and is an active element at the Jorge Álvares Foundation, named after the first Portuguese who is said to have arrived to China, Hong Kong and Macau. Another former Governor of Macau, General António Lopes dos Santos, served as president of the Jorge Álvares Foundation from 2000 until his death in 2009.
Decorations
He was granted with numerous decorations, both national and foreign, among those:
He married in Alcântara, Lisbon, on 20 November 1976 to Maria Leonor de Campos de Andrada Soares de Albergaria, born in Lisbon on 18 April 1949, Licentiate in RomanPhilology at the University of Lisbon and the daughter of João José Cabral Soares de Albergaria, 3rd Viscount da Torre de Moncorvo and Representative of the Title of Viscount de Morais Sarmento, a mechanical engineer, and wife Maria Júlia Pellen de Campos de Andrada, of the Family of the former Counters of the Counts of the Realm and House, and he had three sons:
