Peter Baelish, also known as "Littlefinger," is a fictional character from the series A Song of Ice and Fire by George R.R. Martin and its television adaptation, Game of Thrones. He is a cunning and ambitious man who starts as a minor noble and rises to significant power in the Seven Kingdoms through manipulation and strategic alliances. Baelish is known for his intelligence, charm, and ruthless tactics. He operates a brothel in King's Landing and uses his wealth and connections to influence key figures, including Catelyn Stark and Sansa Stark. His ultimate goal is to gain control over the realm, often playing various factions against each other.