The Order of the who? Of the What?
If one travels, you might notice it. Each one has a blue orb on their signage or somewhere in the shop. The merchants seem to specialize in foreign goods, but often buy local produce and products, to trade in other places. They seem totally unrelated to the others. It seems to be a secret organization, but nobody knows for sure.
The Blades of the Golden Sun are an organization lost to history. They are a legendary group, with songs, stories, and histories written about the exploits of their members. They were warriors of the famous Sun Swords, fighting against “The Evil”, the Dark Night.
A great listing of names and short descriptions as well as fleshed out groups/ societies/ and organizations.
In a city where the justice system features judicial dueling, plaintiffs and defendants are permitted to request a champion to take their place in the duel: Someone chosen by lot from among the foreigners in the city. When anyone first arrives, they are given an enchanted ceramic pendant that marks them as a candidate for "court duty".
Wealthy folk entering the city are often escorted by burly guards, paid to carry pendants on their behalf: They elude court duty in that way.
Adventurers may seek work as a rich man's proxy or may find themselves magically summoned to serve as a champion.