Hedonia was not the first city dedicated to Nagus Sterling, the Earl of Exchange. At the Base of the World™ stands a glorious holy city of excess (or city of holy excess) known simply as The Great Market. An impressive temple to Nagus stands at the heart of the bazaar. It serves as bank, action house, appraisal institute, cambist, and school of finance.
The priests of Nagus Sterling are bankers and accountants. (One does not seek out a priest of Nagus for healing, although one of the largest hospitals in the realm is located in the Market. It’s the very best care, but you will pay for it.) His devotees are often merchants and traders of all types. The impoverished send him their desperate pleas, as do gamblers, thieves, and politicians.
Bonus: Geography, The Great Market is a city of trade, of exchange, of negotiation. Anything can be bought and sold in The Great Market from spice and clothing to mercenaries and magic. All races and all churches have representation in the Market. It truly is where all cultures come together for the greatest trade requires the greatest audience.