...The threat from outside, and the intermarriages noted in the Codex (Liam to wed a relative of Kelson's and either Rory or Payne to wed a relative of Liam's-I don't have my own copy of the Codex, and my recall is fuzzy at best)...
According to Codex, Liam marries Eirian, Nigel's and Meraude's daughter (thus Kelson's first cousin), and Payne marries Stanisha, Liam's sister.
DesertRose, the encyclopedia-of-trivia-brain.
