The Balthus knot or also known as "The Cousin of the Full Windsor" is a highly sophisticated 9-move, 4-centre knot, and is the largest, broadest knot of all. The knot is named after a Polish-French artist, Balthasar Klossowski (Balthus). The Balthus needs a tie with ton of length. The knot is different from most since it begins with your tie sitting with the inside out. The Balthus ends with a very wide triangular shape, and looks best with a spread collar.