Álvaro I and his successor, Álvaro II, also faced problems with factional rivals from families that had been displaced from succession. In order to raise support against some enemies, they had to make concessions to others. One of the most important of these concessions was allowing Manuel, the Count of Soyo, to hold office for many years beginning some time before 1591. During this same period, Álvaro II made a similar concession to António da Silva, the Duke of Mbamba. António da Silva was strong enough to decide the succession of the kingdom, selecting Bernardo II in 1614, but putting him aside in favor of Álvaro III in 1615. It was only with difficulty that Álvaro III was able to put his own choice in as Duke of Mbamba when António da Silva died in 1620 instead of having the province fall into the hands of the duke's son. At the same time, however, Álvaro III created another powerful and semi-independent nobleman in Manuel Jordão, who held Nsundi for him.