I've been reading over the RPG from Green Ronin for Game of Thrones (A Song Of Ice and Fire RPG). I've been gathering ideas from it as discussed here: http://www.crafty-games.com/forum/index.php?topic=8050.0
I'll port over what I've put already so it does not need to be repeated or read.
I'm converting over the idea of House Creation for lesser nobles in my home game and if the Players decide they want to play an Aristocrat or Lord Specialty then I'll give them the option of creating their ancestry including when their House started and what current state they are in. It covers 7 different aspects which are modified by the area of the country they are in:
Defense (Castles, fortifications, keeps, towers, etc)
Influence (Political/Social Power in the land)
Lands (Size and scope of the House's lands)
Law (How much control and respect the House has on its lands vs crime)
Population (How many people you actually rule)
Power (Military might including Bannermen, 17 different possible military units at 4 different possible Skill levels)
Wealth (House's soluble resources, including initial holdings of the House like an Artisan, a Guild, a Marketplace, a Mine or Port, a Chapel or a professional adviser/instructor/vizier).
I was looking for advice on is how to switch over the Stewardship aspect of their Status Skill. Other aspects of the Status Skill include Breeding (a blend of knowledge of customs, history & procedures w/court etiquette), Reputation (equal to Noble Renown), and Tournament (basically a knowledge check on Tournament history like what knights were there and who won the joust in the last two decades). In short sum, a couple of Knowledge checks and Noble Renown easily handle the other aspects of the Status Skill but the Stewardship one eludes me as it is used for administrating, growing, and managing your lands.
In the scope of it, the idea of Stewardship is about the nobility managing their family's land(s) including buildings and enterprises on them. From a small noble family with a estate house and the immediate land it rests on (which is probably best considered a Holding) to a noble House like the Lannisters or Starks or Tyrells of Westeros were vast stretches of land, buildings, and enterprises are governed.
At the moment, I'm thinking of an average of ranks between Haggle & Resolve with a WIS modifier plus Noble Renown or Prudence. Alternately, the total of Noble Renown & Prudence plus whatever appropriate mental Stat modifier might fit the situation. Noble Renown of 2, Prudence of 5 and INT mod +3 for some situations would result in a 10 vs whatever the difficulty might be.
One additional component which I forgot to mention was that one component of House Creation also involves setting your maximum level of Influence which would be equated to Noble Renown. This brings an interesting element to the whole level as it can equate out each level of Noble Renown is quite readily.
There is also an aspect of the House Fortunes and increasing the attributes of a House. The roll for House Fortunes is done at least once every 3 months and at most 1 time per month. The alternate option is to choose to spend either Coin or Glory (think Reputation) to improve a House. In the book, the coin exchange is 200 gold dragons to add 1 to Wealth. Consider the idea of standard exchange rates we are familiar with that would equate out to 2000 Silver, I'm thinking of moving it toward 5000 Silver considering how easily Silver may be gained. With Glory in the game, it can be spent to grant a +1 bonus to the House Fortunes roll per point spent on it for the month or spent to increase any resource by 1 per point spent. It is much harder to gain Glory in the game than it is to earn Reputation in FC so I'm considering a 5 or 10 Rep to 1 Glory exchange.
There are 4 different House actions that can be taken but only 1 per month: Manage Resources (including exchanging resources to adjust to things going on), Begin Projects, Wage Wars, and Host Tournaments.