The Pirate Queen is a musical written by Claude-Michel Schönberg and Alain Boublil.  John Dempsey is the co-lyricist. The Pirate Queen marks the first time Boublil and Schönberg have created a musical with American collaborators. It is based on the life and adventures of the 16th century Irish chieftain and pirate Gráinne O'Malley, who was one of the last Irish clan leaders to resist the English conquest of Gaelic Ireland.