As can be seen, the biographers differ on whether it was an unnamed local schoolmaster (Dies), or Franck himself (Griesinger) who advised Haydn's parents to send their son to Franck. They also differ in whether the parents sought musical training with the view that it would help their son become a Catholic priest (Griesinger), or whether they reluctantly decided to give on their hopes for a clerical career for Joseph and let him pursue a musical one instead (Dies). In such cases of conflict Haydn biographers tend to trust Griesinger.