The most famous of the Fortuna IV casinos is the Wheel--a station designed to look like an Old Earth roulette wheel. It's rumored to be owned by Alys Eldorose, a famous gambler in her own right.
Alys also owns the diamond planet Fortuna I, also called Solitaire.
Some say Alys was one of the original colonizers, whose mind sailed out on a lightship at 10% of the speed of light back in the Age of Human Expansion. If so, she would be thousands of years old. Alys is never known to have responded to these rumors, one way or the other.