Donations in South America under Charles V before the establishment of the Viceroyalty of Peru
The governor of the Río de la Plata (Spanish: Gobernador del Río de la Plata ) ruled the Spanish colony that would later become Paraguay , Argentina and Uruguay .
First, King Charles I had marked the area from the Atlantic to the Pacific as New Andalusia (Spanish: Nueva Andalucía ); the first colonial administration for the area around the Río de la Plata was installed in Asunción around 1540 .
From 1617 the Río-de-la-Plata colony, which had been administered uniformly from Asunción, was divided into two governorates. The northern area on the Paraguay River kept the capital Asunción, the southern area of the Silver River received Buenos Aires as its own administrative seat .
In order to ensure more efficient control of the area on the left bank of the Río de la Plata and those parts of the Banda Oriental (border area with Brazil), which had been disputed between Spain and Portugal until then and which had been awarded to Spain in the Treaty of Madrid (1750) , 1751 a third governorate with administrative headquarters in Montevideo created ( Gobernación de Montevideo ).
Arrival at the Silver River in January 1536; first foundation of Buenos Aires . Sends two reconnaissance teams under Juan de Ayolas and Juan de Salazar y Espinosa to Paraguay. After their absence and increasing exhaustion, he left the country discouraged and died of syphilis on the return trip to Europe
Lead the first expedition to Paraguay. Founds Fort La Candelaria near today's Corumbá . From there he goes to the Gran Chaco , where he is believed to be killed by the Indians. At the same time, the establishment of Asunción in Paraguay by Juan de Salazar y Espinosa , the leader of the second expedition. Ayolas is appointed governor of Mendoza on his departure
Deputy Ayolas, remains as commander in Fort La Candelaria , which he gives up after Ayola's disappearance and moves to Asunción. Heads the colony there together with Salazar de Espinosa and orders the evacuation of Buenos Aires in 1541. Stripped of power by Álvar Núñez after his arrival
Appointed Adelantado in 1540 to succeed Pedro de Mendoza and set out from Cádiz . Lands with 400 men on Catherine Island ; reached Asunción in March 1542 after several months of walking through the jungle. Suppression of an uprising by the Guarani Indians (1542). Subsequently, efforts to improve the position of Indian forced laborers against resistance from the colonists. Overthrown because of conflicts with the settlers and after ten months in prison in 1545, Juan de Salazar y Espinosa took him to Spain as a prisoner
Governors of the Río de la Plata in the Viceroyalty of Peru under Charles I (1542–1556)
After the fall of Álvar Núñez Cabeza de Vacas, elected by the colonists in Asunción. Not confirmed by the king and officially deposed in 1547, but remains in office. 1547–1549 leads expedition to Potosí . Receives a royal appointment in 1552/53 after the assumed failure of the Sanabria expedition. Ruled practically unrestricted in the colony for 12 years, tough crackdown on internal opponents, skillful Indian policy through alliances with local caciques
Appointed Adelantado as successor to Álvar Núñez Cabeza de Vacas with the stipulation that an expedition should be equipped with at least 6 ships. Dies in Seville while preparing to travel
Appointed tesorero as companion and administrator Juan de Sanabrias. After his death in April 1550, he set off for Paraguay with Sanabria's widow Mencía Calderón (called: la Adelantada ) and the first group of 3 ships, both of which only arrive there at the end of 1555 after shipwrecks and hardships
Appointed Adelantado at the instigation of his stepmother Mencía Calderón at the age of 18 , as son and heir he takes over all rights and obligations of his father Juan de Sanabria. Diego set off from Seville in October 1552 with the second group of 3 ships, accidentally got into the Caribbean after wandering around and is believed to have been lost there
Appointed interim governor after the death of Juan de Sanabria with the stipulation that three ships precede the young Adelantado Diego de Sanabria and prepare for his arrival. Trip does not take place; Alanís de Paz is replaced as commander of the ships by treasurer Juan de Salazar y Espinosa (1547–1556 "Tesorero del Río de la Plata") after disagreements .
Governors under the reign of Philip II (1556–1598)
Younger brother of Pedro de Mendoza, assistant and supporter of Salazar when Asunción was founded. Will be his successor after Irala's death. During his tenure in 1557, the Ciudad Real de Guayrá was founded by Ruy Díaz de Malgarejo .
Elected by the colonists; closely connected with Ñuflo de Chávez , with whom he suppressed a large mestizo and Indian rebellion in 1559/60. Numerous attempts to found cities fail. Leaves the colony in 1564 together with some of the settlers in search of riches in the Amazon, where Chavez claims to have found gold. He was then summoned to the Real Audiencia of Charcas , deposed there, arrested and taken to Spain in 1565. Returns with Juan Ortiz de Zárate in 1572 and, together with him and Juan Garay , founds the city of Zaratina in the Banda Oriental in 1574 , where he dies in December of the same year.
Takes over the post from Ortega and is confirmed in 1567 by the President of the Audiencia of Lima as interim governor of La Plata, subject to an appointment. Left for Spain in December 1568 to meet the king. Appointed Adelantado with successor rights by Philip II , he returned to the colony in 1572.
Appointed by Ortiz de Zárate. Deposed from the citizenry at the instigation of Bishop Pedro Fernández de la Torre and his supporters. Arrested and taken to Spain.
Managed the colony after the deposition of Cáceres in the absence of the Adelantado with Juan de Garay as chief of police. Commissioned Garay in 1573 to found Santa Fe (Argentina) . He had to flee when Diego de Ortiz took power in Asunción in 1574 and did not approve of the action against Felipe de Cáceres.
Returns to the Silver River in 1572, wages war against the Indians in the Banda Oriental for two years . He returned to Asunción in 1575, where he confirmed his nephew Diego as interim governor and subsequently deposed his predecessor, Martín Suárez de Toledo, who had fled. Creation of Tucumán . Confirmed Juan Garay as Lieutenant Governor of Santa Fe.
Nephew of Juan Ortiz de Zárate. Martín Suárez de Toledo succeeds, is confirmed by his uncle in January 1576 and appointed captain general. Device on an inspection tour in conflict with the citizens of Santa Fe, who forced him to resign from office and banished him to Spain in 1577. The de facto rule in Asunción is exercised by his daughter and his deputy Luis de Osorio.
Nephew of Juan Ortiz de Zárate, on his behalf since 1568 as police chief ( alguacil mayor ) of the Rio de la Plata colony in Asunción and as the founder of the city, leader of the colony of Santa Fe. The most important event of his tenure as governor of La Plata is the re-establishment of Buenos Aires in 1580 under Garay's leadership.
General and de facto governor of Asunción until 1592 on behalf of his uncle, the Adelantado Juan Torres de Vera. Was nicknamed "dog face" ( cara de perro ).
Oidor (judge) at the Real Audiencia , married to Juana Ortiz de Zárate, daughter of Juan Ortiz de Zárate . Last adelantado appointed by the king. 1588 founder of Corrientes
Governors of the Río de la Plata and Paraguay under Philip II (1592–1596)
