Although strongly identified as a religious altarpiece form, triptychs outside that context have been created, some of the best-known examples being works by Max Beckmann and Francis Bacon. When Bacon's 1969 triptych, Three Studies of Lucian Freud, was sold in 2013 for $142.4 million, it was the highest price ever paid for an artwork at auction at that time. That record was broken in May 2015 by $179.4 million for Pablo Picasso 's 1955 painting Les Femmes d’Alger.