Who said "I do not fear death, for I have lived fully."?

This quote is attributed to Lannister.

I do not fear death, for I have lived fully. - Lannister

"I do not fear death, for I have lived fully."

Lannister Death

"A Lannister always pays his debts."

"I am the god of tits and wine."

"You are an awful man."

"I drink and I know things."

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."