The richest and one of the most powerful noble houses, ruling the Westerlands from Casterly Rock. Their words are 'Hear Me Roar,' though 'A Lannister Always Pays His Debts' is better known. The golden lion is their sigil. Under Tywin Lannister, the House achieves effective control of the Iron Throne through the marriage of Cersei to Robert Baratheon and the subsequent reign of her children. The Lannisters' wealth comes from the gold mines beneath Casterly Rock.