Lord Fang Di
A wealthy cloth merchant
Lord Fang Di comes into the story because he is the one who owned the green jade that Pa Mu stole. He is also the one who cut off her Paw’s paw, which she still carries with her to this day.
The center of his trade network is in the city of Heaven’s Landing near Bohai Bay. (This is probably the city that Pa Mu has a map of, though it doesn’t need to be)
He is an avid jade collector, and has many alchemists in his employ working to ensure his immortality.