Who said "My patience has limits, and you don't want to test them."?

This quote is attributed to Joffrey Baratheon.

My patience has limits, and you don't want to test them. - Joffrey Baratheon

"My patience has limits, and you don't want to test them."

Joffrey Baratheon Patience

"You are not the king, Lord Stark. I am."

"I should have beaten you harder when I had the chance."

"Everyone who isn't us is beneath us."

"I'll have you killed if you speak to me like that again."

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."