Commemorative coin 2 euro dedicated to the anniversary of 100 years since the birth of Maria Callas (1923–1977). Maria Callas (born Maria Kalogeropoulos), was one of the most renowned and influential opera singers of the 20th century. The motif depicts the profile of Maria Callas, the title of the coin, the name of the issuing country, the year of issue and the Greek mint mark.