Born in Lisbon, he was the son of King Manuel I and his queen consort, Maria of Aragon (the third daughter of King Ferdinand and Queen Isabella of Spain). John succeeded his father in 1521, at the age of nineteen. He ascended to the throne while the Portuguese Empire was at the height of its mercantile and colonial power, and its capital, Lisbon, occupied a position of global commercial importance. During his rule, Portuguese possessions were extended in Asia and in the New World through the Portuguese colonization of Brazil. John III's policy of reinforcing Portugal's bases in India (such as Goa) secured Portugal's monopoly over the spice trade of cloves from the Moluccas and nutmeg from the Banda Islands, as a result of which John III has been called the "Grocer King".
During his reign, the Portuguese became the first Europeans to make contact with both China, under the Ming Dynasty, and Japan, during the Muromachi period of Nanban. He abandoned Muslim territories in North Africa in favor of trade with India and investment in Brazil. In Europe, he improved relations with the Baltic region and the Rhineland, hoping that this would bolster Portuguese trade.
John was responsible for the evangelization of the Far East and Brazil, in part through the introduction of Jesuit missions there. However, both the Jesuits and the Portuguese Inquisition, introduced in 1536, were disastrous to the commercial prosperity and social stability of the Empire. In the final years of John's reign, Portugal fell into the stagnation that would also characterize the reign of his grandson and successor, Sebastian, who became king upon the death of John of apoplexy in 1557.
The young prince was sworn heir to the throne in 1503 and was educated by notables of the time, including the astrologer Tomás de Torres and Diogo de Ortiz, Bishop of Viseu. One of his teachers was Luís Teixeira, a humanist educated in Italy. John's chronicler said that "Dom João III faced problems easily, complementing his lack of culture with a practice formation that he always showed during his reign" (António de Castilho, Elogio d'el-rei D. João de Portugal, terceiro, do nome). In 1514, he received his own house, and a few years later he began to help his father in administrative duties.
At sixteen he was chosen to marry his first cousin, the 20-year-old Eleanor of Austria, eldest daughter of Philip the Handsome of Austria-Burgundy and queen Joanna of Castile, but in the end she married his widowed father King Manuel I. John took deep offence at this: his chroniclers say that he became melancholy and was never quite the same. Some historians also claim this was one of the main reasons that John later became fervently religious.
The marriage of John's sister, Princess Isabella of Portugal, to Charles V made it possible for the Portuguese king to strengthen his alliance with Spain and the Holy Roman Empire. To fortify his ties with Austria, he married his maternal first cousin Catarina of Spain, younger sister of Charles V and of his erstwhile fiancée Eleanor, in the town of Crato. John had nine children from that marriage, but most of them died early in their lives, and by the time of John's death, only his grandson, Sebastian, was able to inherit the crown.
John III continued centralizing the absolutist politics of his ancestors. He called for the Cortes only three times and at great intervals: 1525 in Torres Novas, 1535 in Évora and 1544 in Almeirim. He also tried to restructure administrative and judicial life in his realm.
Among John III's many governors of this region, were Vasco da Gama, Henrique de Meneses, Pedro Mascaranhas, Lopo Vaz de Sampaio, Nuno da Cunha, Estêvão da Gama, Martim Afonso de Sousa and João de Castro.
In the first years of John III's reign, explorations in the Far East continued and the Portuguese reached China and Japan; however, these accomplishments were offset by pressure from a strengthening Ottoman Empire under Suleiman the Magnificent, especially in India where attacks became more frequent. The expense of defending Indian interests was huge, and to pay for it, John III abandoned a number of strongholds in North Africa (Safim, Azamor, Alcacer Ceguer and Arzila).
John III remained neutral during the war between France and Spain, but stood firm in fighting French corsair attacks. He strengthened relations with Rome by introducing the Inquisition in Portugal and the adhesion of the Portuguese clergy to the Counter-Reformation. The improved relation with the Catholic Church made it possible for John to name whomever he wanted, to important religious positions in the country: his brothers Henry and Afonso were made Cardinals, and his natural son Duarte was made Archbishop of Braga.
Commercial relations were intensified with England, the countries of the Baltic and Flanders during Johnn's reign. Meanwhile, in the other end of the world, Portugal was the first European nation to make contact with Japan. In China, Macau was offered to the Portuguese, and soon Portugal controlled major trading routes in the area. In the South, the Portuguese continued with a hostile attitude against their Muslim rivals and insurgent Indian leaders. In the Moluccas John achieved an important political victory securing the control of the area in spite of Spanish claims.
The monarch attributed many scholarships in Universities abroad (mainly in Paris) and definitively transferred the University from Lisbon to Coimbra in 1537. He quickly recalled prominent figures of European education (many were Portuguese teaching abroad) and provided the University with excellent conditions. However, the importance of the University of Coimbra was minimized with the installment of the Society of Jesus. This society founded colleges and widened education in the country but on the other hand created great instability in Portuguese education, assuming itself as a rival of the University of Coimbra with a conservative position, often against innovation. The Inquisition also arrested and killed many prominent teachers and censured new ideals like the Erasmism.
Another noteworthy aspect, was the support that John gave to missionaries in the New World, Asia and Africa.
The activity of the courts was extended to book censure, divination, witchcraft and bigamy under John III. Book censure proved to have a strong influence in Portuguese cultural evolution, plummeting the country into an era of ignorance and cruelty. Originally oriented for a religious action, the Inquisition had an influence in almost every aspect of Portuguese society: politically, culturally and socially.
"Now, I III say, like you said that there was no capture of slaves in your Kingdom Congo, I just want to provide you of the Congo with flour and wine for your Eucharistic rites, and for that it would only be needed a caravelão kind of caravel each year; if it seems right to you, in exchange for 10,000 slaves and 10,000 armlets and 10,000 ivory tooth, that, it is said, in the Congo there is not much, not even a ship per year; so, this and more shall be as you want." (Letter of John III to the King of the Congo).
Under John III, several expeditions started in coastal Africa and advanced to the interior of the continent. These expeditions were formed by groups of navigators, merchants, adventurers and missionaries. Missions in Africa were established by the College of Arts of Coimbra. The objective was to increase the king's dominion, develop peace relations and to christianize the native population.
"To want to have such a costly thing, and from which there came no profits wasn’t wise, mainly for who had so great expenditures and so huge and necessary, that cannot be stopped." (Unknown, Relações de Pero Alcáçova Carneiro, etc., 1937)
John III decided to abandon Safim and Azamor in 1541, followed by Arzila and Alcácer Ceguer in 1549. The fortresses of Ceuta, Tangiers and Mazagan were strengthened "to face the new military techniques, imposed by the generalization of heavy artillery, combined with light fire weapons and blades" (José Mattoso dir., História de Portugal, 1993).
"There were years when the King had thought with his great judgement (…) to abandon the cities of Safim and Azamor (…). It was certain that Safim had no port and the river of Azamor was not navigable (…). The cost was too much that resulted in fruits of no consideration (…)" (Frei Luís de Sousa, Anais de D. João III, 1983).
John III declared every male subject between 20 and 65 years old recruitable on 7 August 1549.
"Every nobleman, like all my servants and those who are not, and every knight, squire, servants of mine, my brothers, and any other person that might have them *, I order them to have the horses ready." (idem)
"From India, he III receives all kinds of spice, drug & stone & many cotton clothes, taficiras and alaquecas of Indian fabrics. From Malacca, clovetrees, marzipan, sandalwood, camphor, porcelains, beijoim & calaim of spices. From Bengala, sinafabos, flannel, chautares , castor beans, & rebotins that are kinds of thin fabric made of cotton (…). From Alexandria & Cairo, red dyewood, cinnabars, saffron, copper, rosed waters, borcados kind of silk, velvets, taffeta, grains of wood, camlets, gold & silver in bars, & in coins, & carpets. From China, musk, rhubarb, & silk in exchange of gromwells, pearls, horses from Arabia & Persia, non worked silk, silk embroidery threads, fruits of the date palm, raisins, salt, sulphur & many other goods." (Fernão Lopes de Castanheda, História do Descobrimento e Conquista da Índia pelos Portugueses, 1979)
As Muslims and other peoples constantly attacked Portuguese fleets in the area, and because India was far away from mainland Portugal, it was extremely difficult for John III to assure the Portuguese dominion in this area. A Viceroy, a Governor-General with large powers, was nominated, but it was not enough. The Portuguese started by creating feitorias – commercial strongholds (Cochin, Cannanore, Coulão, Cranganore and Tanor) – with the initial objective of establishing just a commercial dominion in the region.
The hostilities demonstrated by many Indian kingdoms, and the alliances between sultans and zamorins to expulse the Portuguese, made it necessary for the Europeans to establish a sovereign state. So, Portugal militarily occupied some key cities on the Indian coast, and Goa (1512) became the headquarters of the Portuguese Empire in the East. Goa became a starting point for the introduction of European cultural and religious values in India, and churches, schools and hospitals were built. Goa remained an overseas possession of Portgual until it India recovered it in 1975.
Portuguese traders started negotiating with Japan earlier than 1550, and established a base there at Nagasaki. By then, trade with Japan was a Portuguese monopoly, under the rule of a Captain. Because the Portuguese established themselves in Macau, Chinese commercial relations, mainly the silver trade with Japan, were improved under John III's rule.
The dispute was settled in 1529 by the Treaty of Zaragoza, signed by John III and Charles I of Spain. The Portuguese paid 350,000 golden ducados to Spain and secured their presence in the islands.
This payment should not have been a necessity, as Portugal was actually entitled to the islands, according to the Treaty of Tordesillas.
"In the morning of the other day, we set sail from this island of Sanchão and when the sun set, we arrived at another island, that lies six more leagues to the north, called Lampacau, where at that time the Portuguese made trade with the Chinese, and they made it until the year of 1557, when the mandarins of Canton, when asked by Portuguese land merchants, gave this port of Macau to us (…)." (Fernão Mendes Pinto, Pilgrimage, 1974 ed.)
Portugal had managed to retain Macau for over 400 years. It became a Special Administrative Region of the People's Republic of China in 1999, two years after Hong Kong was similarly returned to Chinese jurisdiction by the UK.
Since Brazil lacked a large native population, Portugal began to import African slaves to the territory. The first slaves, from the region of Guinea, arrived in Brazil in 1539. Though some worked in the sugarcane fields and factories, most were used to cut, clean, and transport brazilwood to the littoral.
"Martim Afonso, my friend, I, the King (…) knew of your arrival at this land of Brazil, and because of your patrol of the coast (…) against the French corsairs, (…) I thank you (…). After you left, a question was raised if it would be my service to populate all that coast of Brazil, and some people asked me for captaincies (…), so I ordered to mark from Pernambuco to the Rio da Prata Rio de la Plata fifty leagues of coast to each captaincy, and before giving them to anyone, I ordered a hundred of the best leagues of the coast to be marked to you and fifty leagues to your brother, Pêro Lopes (…). I also gave captaincies of fifty leagues to some people (…) and everyone is willing to take people and ships with them (…)" (Letter of John III to Martim Afonso de Sousa)
The first Governor-General appointed by John III was Tomé de Sousa, who in 1549 founded the city of Bahia (known at the time as São Salvador da Bahia de Todos os Santos - Holy Saviour of the Bay of All Saints).
| John III of Portugal | Father: Manuel I of Portugal | Father's father: Infante Fernando, Duke of Viseu | Father's father's father: Edward of Portugal |
| Father's father's mother: Leonor of Aragon | |||
| Father's mother: Beatriz of Portugal | Father's mother's father: Infante João of Portugal | ||
| Father's mother's mother: Isabel of Braganza | |||
| Mother: Maria of Aragon | Mother's father: Ferdinand II of Aragon | Mother's father's father: John II of Aragon | |
| Mother's father's mother: Juana Enriquez | |||
| Mother's mother: Isabella of Castile | Mother's mother's father: John II of Castile | ||
| Mother's mother's mother: Isabel of Portugal |
To this day, John's body rests in the Monastery of Jerónimos in Lisbon.
| Name | Birth | Death | Notes |
|---|---|---|---|
| By Catarina of Spain (married February 10 1525) | |||
| Prince Afonso | February 24 1526 | March 1526 | |
| Princess Maria | October 15 1527 | August 12 1545 | First wife of King Philip II of Spain. She had one deformed child, Don Carlos, and she died a few days after his birth. |
| Princess Elizabeth | April 28 1529 | April 28 1529 | |
| Princess Beatrice | February 15 1530 | February 15 1530 | |
| Prince Manuel | November 1 1531 | April 14 1537 | Heir in 1535. |
| Prince Philip | March 25 1533 | April 29 1539 | Heir in 1537. |
| Prince Denis | April 6 1535 | January 1 1537 | |
| Prince John | June 3 1537 | January 2 1554 | Heir in 1539. Married Joan of Habsburg. Their son became King Sebastian I. |
| Prince Anthony | March 9 1539 | January 20 1540 | |
| By Isabel Moniz | |||
| Duarte, Archbishop of Braga | 1521 | November 11 1543 | Natural son. |
The official style was the same used by his father Manuel I: "Dom João, by the grace of God, King of Portugal, of the Algarves, of either side of the sea in Africa, Lord of Guinea, & of the Conquest, Navigation, & Commerce of Ethiopia, Arabia, Persia, & India" (Dom João, por graça de Deus, Rei de Portugal, e dos Algarves, d'aquém e d'além mar em África, Senhor da Guiné, e da Conquista, Navegação, & Comércio da Etiópia, Arábia, Pérsia, & Índia). This style would only change in the 19th century when Brazil became a Vice-Kingdom.
1502 births | 1557 deaths | Portuguese monarchs | House of Avis | Knights of the Golden Fleece | Portuguese Inquisition
Жуау III | Joan III de Portugal | Johann III. (Portugal) | Juan III de Portugal | Jean III de Portugal | Giovanni III del Portogallo | Johan III av Portugal | Jan III Aviz | João III de Portugal | Жуан III (король Португалии) | Johan III av Portugal
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"John III of Portugal".
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