It occurred to me this morning that while the individuals in any Clan will "marry up" by taking on the surnames of the Clan that has the greatest Prestige at the time, I failed to consider how that would affect the Clan that lost that member. Considering that all the Clans are members of Dwarven Gentry at least, I consider the families joining as formal allies by marrying off their available sons and daughters to "seal the deal". As it stands, one member of a less prestigious Clan basically skips off to marry into the more prestigious Clan, but his/her original Clan gets nothing out of that deal - so why would they want to let their "free" sons or daughters go at all?
To make up for this lack, I'm adding in the "fealty" system: Whenever two Clans intermarry, the less Prestigious Clan will "swear fealty" to the more prestigious Clan. The more prestigious Clan will still get the +1 Living member bump in Prestige that they usually do, but the less prestigious Clan will gain half the the Prestige of the Clan they've sworn fealty to. Of course, this will be cumulative with each Clan intermarriage, until there are no more dwarves alive with that Clan name. The "fealty" system introduces one more item: when it comes to picking a position, if a Clan with less Prestige has the "fealty" of a Clan with more Prestige, that fealty will allow them to take the position first. This little wrinkle will allow us to have the "last scion of an old and noble family, much respected but fallen on hard times" thing in the game too.
As time goes on and the RNG intermarries more and more Clans, it will be interesting to see which Clans will use the ally system to rise to prominence themselves, and which will fall into obscurity as all of their children take on other Clan names, leaving only the originators of the name to carry on.
...
OK, after a bit of back-editing and a bunch of minor tweaks, I've finished making the changes required by the "fealty" system. It really is sort of cool to be able to flip forward and backward through time, making little changes here and there that cumulatively change the shape of the game altogether. OK, on to year 25.