We are now introduced to Limhi, whom we met when this entire historical flashback began. The presence of Limhi in the party that fled with Noah further strengthens the idea that those who fled were family first and retainers to Noah. Limhi certainly would have gone with his clan, even though his moral character is certainly an improvement over his father's, a fact also noted by Mormon (verse 17).
The presence of both the King and the future king in the same group provides yet another reason for both the pursuit of this group and the nature of the conclusion of the conflict. With the capture of the king-to-be, and perhaps a public rejection of the fled King, the Lamanites would have captured the city by proxy in the person of the man who would traditionally be the personification of the city (of course this presumes that Noah was now sufficiently discredited that Limhi would be considered as the current rather than the future ruler.)