Esterházy torte is a Hungarian and Austrian cake named after Paul III Anton, Prince Esterházy, a wealthy prince and diplomat of the Austro-Hungarian Empire. It has become one of the most famous cakes in Europe. It was invented in the 19th century in honor of Prince Esterházy. Esterházy torte consists of buttercream sandwiched between four to five layers of almond meringue. There are, however, many different recipe variations.