In 1901, historian The second Portuguese mission arrived at the mouth of the In 1579, Portuguese merchants who had settled in Kongo, led by The war that followed witnessed a Kongo invasion which was narrowly defeated in 1580, and a Portuguese offensive up the Kwanza river, resulting in the founding of their fort at During the early seventeenth century an uneasy peace held between Portugal and Ndongo.

The original core of the kingdom was in the highlands east of Luanda, Angola, between the Cuanza and Lucala rivers.

She reoccupied Kindonga and began mobilizing support of all the sobas opposed to Hari an Angola and Portuguese rule, leading to a second war with Portugal. His son and successor was equally disappointed, especially following the Portuguese treaty with Ndongo which recognized Nzinga as queen of Ndongo and Matamba in 1657, leaving him feeling dishonored as only ruler of Pungo a Ndongo.

When the Dutch invaded Brazil, Filipe served against them, forming the bulk of the forces that defended the rump colony at Following the expulsion of the Dutch, however, Filipe began to feel that the Portuguese were not giving him his full due. A Portuguese mission arrived in Ndongo in 1520 but local disputes and perhaps Kongo pressure forced the missionaries to withdraw.

Much of this work was gathered in the monumental collection of original sources, in the original languages

The kingdom consisted of several core provinces ruled by the Manikongo, the Portuguese version of the Kongo title Mwene Kongo, meaning "lord or ruler of the Kongo kingdom", but its sphere of influence extended to neighbouring kingdoms, such as Ngoyo, Kakongo, Loango, Ndongo and Matamba, the last two located in what is Angola today.

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Sousa's army defeated Nzinga again in 1628, once again forcing her to flee the islands.

Using this support, Nzinga moved northward and captured the Kingdom of At this point, the history of Nzinga becomes that of Matamba, and her career can be followed in that country.Filipe I served the Portuguese loyally in the following decades, even when the Portuguese made a separate peace with Nzinga in 1639.

Little is known of the kingdom in the early sixteenth century. His troops were the largest component in the army the Portuguese used to make conquests and to consolidate their rule in the Dembos area to the north. According to early Around 1556 Ndongo sent another mission to Portugal seeking military assistance and offering to be baptized, even though Portuguese officials at the time doubted the religious sincerity.

Although Nzinga was prepared to do this, she would not leave the island until her full control was established and the Ijiko returned. When the Portuguese refused, Nzinga encouraged them to run away and enter her service.Sousa felt confident enough at this point to declare Nzinga deposed and convened some sobas who had supported her to re-elect as new king Hari a Kiluanji, lord of the rocky fortress of Mpungo a Ndongo (or Nzinga refused to recognize Hari a Ngola claiming that he was of slave origin and not eligible to reign. His temporary successor, the bishop, was unable to execute the treaty, and it was then left to the new governor, Fernão de Sousa to settle matters when he came in 1624.Portugal's failure to honor its treaty took a toll on Ngola Mbandi, and in desperation, he committed suicide, leaving the country in the hands of his sister Father Giovanni took this opportunity to reopen negotiations with Nzinga, whose legitimacy he questioned.

He refused to return the Ijiko, and insisted that Njinga first acknowledge Portuguese sovereignty.

At its height in the late 16th century, it stretched west to the Atlantic coast and south of the Cuanza.