sentences:  Maillezais Cathedral
  
  Maillezais Cathedral (, or "St. Peter Maillezais") is a ruined Roman Catholic church in the commune of Maillezais in the Vendée, France.Formerly the site of the Abbey of Saint-Pierre, the site grew from the 10th century abbey to the cathedral completed in the 15th century, with the many structures at the site abandoned by the end of the 17th century.