Tyrion Lannister is a member of House Lannister and is the third and youngest child of Lord Tywin Lannister and the late Joanna Lannister. His older siblings are Cersei Lannister, the queen of King Robert Baratheon, and Ser Jaime Lannister, a knight of Robert's Kingsguard.
Tyrion is a dwarf; because of this he is sometimes mockingly called the Imp and the Halfman.
