Though this reputation is fairly new, being fabricated by the deeds of Tywin Lannister. Under Lord Tywin and his daughter Cersei, the house as a whole frequently serve a villainous and antagonistic role and also employ other brutal characters, such as Ser Gregor Clegane, Ser Amory Lorch, and the Brave Companions. They are also notorious for their ruthlessness, underhandedness, and general lack of honor.
The Lannisters are known for being the wealthiest house in Westeros, their source of income is the gold mines of the Westerlands. Their sigil is a golden lion against a red background. House Lannister of Casterly Rock is one of the nine great houses of Westeros in the novel series A Song of Ice and Fire and its TV adaptation A Game of Thrones.