Common folklore often has it among the uninformed that half the wealth of the Seven Kingdoms belongs to the Lannister family, and that even the golden lions shit gold.
In truth, another family is equally obscenely wealthy, though they prefer to quietly amass their fortunes—or rather, they favor "careful and sensible investments."
That would be House Tyrell of Highgarden, situated in the most fertile plains where the rivers are said to run with mead.
Chapter 104