Arcades is a masque written by John Milton and performed on 4 May 1634. The piece was written to celebrate the character of Alice Spencer, the Countess Dowager of Derby, widow of Ferdinando Stanley, 5th Earl of Derby, during her 75th birthday. The masque distinguishes Spencer as having a greater far superior to other noble women by titling Spencer as queen of a metaphorical Arcadia that is far superior to any other realm. The piece served as a basis for Milton's later masque, Comus. Source: Wikipedia (en)