Dowries

Since we'll be able to marry off our female progeny, I think it would be cool if each princess had a dowry associated with her.  It'd add a touch of realism, and I think we could introduce a fun game mechanic at the same time.  Each princess has an associated dowry, which can be most anything: gold, land, cities, shards, armies, heroes, whatever.  (Dragon's probably wouldn't assent, of course).  Once married off, the receiving faction receives the dowry in full.  If maintaining a "reserved" dowry is too difficult programmatically, of if it doesn't make sense game mechanic-wise, then the dowry could be negotiated during the marriage negotiation.

Here's where the dowry is different: dowries increase--or decrease--a Faction's Prestige in proportion to its generosity.  A stingy Sovereign will see his/her civilization's prestige lowered.  Nobody likes a miser.  A Sovereign generous with dowries will be better thought of, and will thus attract more people from the wastes.  Other Factions' relations could also improve slightly, because everyone would want a chance a the pie, so to speak.

As always, comments and criticism are welcome.