The two sequences, the “beautiful youth” sonnets (1-126) and the Dark Lady sonnets (127-52), are so distinctive, so unlike the standard Courtly Love formulas, that it is natural to wonder if they are based on real life, but there is no proof. The enigmatic Dedication to the sonnets only confuses the issue. The beautiful youth is a young male, and in the opening sonnets, the poet urges him to perpetuate his beauty by breeding. Later, the poet promises another form of immortality, in his verse.