Who said "Gold can buy many things, but not a man's loyalty."?

This quote is attributed to Drogo.

Gold can buy many things, but not a man's loyalty. - Drogo

"Gold can buy many things, but not a man's loyalty."

Drogo Money

"I am the stallion who mounts the world"

"A Dothraki hears a word and takes it as a command"

"You are of my blood. That is enough"

"I will take what is mine with fire and blood"

"Money is important, but it's not everything"

"Money doesn't buy happiness, but it buys things that make you forget you're unhappy."

"Money isn't everything."

"Money is meaningless without purpose."