The da Silvas, the ruling house of Soyo, were determined to replace the king with a Kimpanzu, as they hoped he would be easier to control, considering the alliance between Soyo and the house. However even amongst the nobles of Kimpanzu were starting to resent the intervention of Soyo in Kongo affairs. In 1670, Álvaro IX was overthrown by Rafael I who preceded him as a more anti-Soyo king, who ended Soyo intervention in the kingdom.
