Complex sentence: His exploits form part of the Doon de Mayence cycle of "chansons", also known as "Les Quatre Fils Aymon" ("The Four Sons of Duke Aymon").
Split into simpler sentences: His exploits form part of the Doon de Mayence cycle of "chansons". The tale is also known as "Les Quatre Fils Aymon" ("The Four Sons of Aymon").