Portuguese Republic in the context of "1999 handover"

The Kingdom of Portugal was a monarchy in the western Iberian Peninsula and the predecessor of the modern Portuguese Republic. Existing to various extents between the mid-12th century and the early 20th century, it was also known as the Kingdom of Portugal and the Algarves after 1471, and was the main constituent of the United Kingdom of Portugal, Brazil and the Algarves, which existed between 1815 and 1822. It coexisted with the Portuguese Empire, the realm's overseas colonies.

The nucleus of the Portuguese state was the County of Portugal, established in the 9th century as part of the Reconquista by Vímara Peres, a vassal of the King of Asturias. The county became part of the Kingdom of León in 1097, and the Counts of Portugal established themselves as rulers of an independent kingdom in the 12th century, following the Battle of São Mamede. The kingdom was ruled by the Afonsine Dynasty until the 1383–85 Crisis, after which the monarchy passed to the House of Aviz.

The handover of Macau from the Portuguese Republic to the People's Republic of China (PRC) officially occurred at midnight on 20 December 1999. This event ended 442 years of Portuguese rule in the former settlement, which began in 1557. Macau was settled by Portuguese merchants that year during the Ming dynasty era and was subsequently under various degrees of Portuguese rule until 1999. Portugal's involvement in the region was formally recognised by the Qing dynasty in 1749. The Portuguese governor João Maria Ferreira do Amaral, emboldened by British actions in the First Opium War and the Treaty of Nanking, attempted to annex the territory by expelling Qing authorities in 1846, but was assassinated in 1849. After the Second Opium War, the Portuguese government, along with a British representative, signed the 1887 Sino-Portuguese Treaty of Peking that gave Portugal perpetual colonial rights to Macau on the condition that Portugal would cooperate in efforts to end the smuggling of opium.

After the Proclamation of the People's Republic of China in 1949 and the transfer of China's seat from the Republic of China (ROC) to the PRC at the United Nations (UN) in 1971, then Chinese foreign Minister Huang Hua appealed to the UN Special Committee on Decolonization to remove Macau and Hong Kong from its list of colonies, preferring to engage in direct bilateral negotiations in getting the territories returned rather than the independence of the territories as was implied by its inclusion on the list.