With the
Portuguese expansion to the south of the colony, to the Río de la Plata region, there was a need to form a new administrative unit of the kingdom to guarantee the possession of these lands. Created on August 11, 1738, its government was installed on March 7, 1739, with the arrival of
Brigadier José da Silva Pais as its first governor. The territory included the current states of Santa Catarina and
Rio Grande do Sul until the latter was emancipated as the Captaincy of Rio Grande de São Pedro in 1760. Portuguese interests in southern Brazil required the maintenance and strengthening of coastal settlements. To this end,
Laguna was elevated to the category of village in 1774 and became an outpost for the conquest of Rio Grande do Sul. From there, expeditions left to reach the colony of
Sacramento and
Montevideo, and in the journey, they collected cattle and imprisoned
Indians.
Desterro, being heavily fortified by Silva Pais since his arrival in Santa Catarina, was its capital. Many of the fortresses built in the period, resisted the
Spanish occupation of 1777 and the centuries, and are standing to this day. After 1807, with the creation of the general captaincy of São Pedro do Rio Grande (future Rio Grande do Sul), its borders comprised: To the north, the Saí Guaçu river (
Joinville), to the south the Mampituba river (
Torres), to the west the
Serra Geral, which runs from north to south, closer to the coast and the east of the
Atlantic Ocean. == Azorean Colonization ==