Keep in mind that Cattle Ranching is one of the economic staples of the surrounding area. I think perhaps instead of cows, it should be something a bit more exotic... Perhaps Marco Polo Sheep. These things are huge. The males grow these beutiful curved horns.
Anyway... I just got off track on my original idea for posting...
Some wealthy ranchers and others will have plantations in the surrounding countryside. In other words some of the rich won't even be living within the city walls.
I think the rich that live within the city walls will likely be one of the following...
--Nobles from other kingdoms that have made Mor's End their home... reasons might be political or economic. Lady Kelvin, in fact, was once from another kingdom, but is now the leader of Mor's End.
--Merchants that have decided to make this important trade hub their base of operations.
--Leading Craftsmen/Artisans that have made the move up by virtue of their talent or marketing skills.
--Scoundrels and Scallywags that have made a fast buck from nefarious dealings.
Let me know what you think...
--sam