Friars in the Middle Ages tended to be rumoured as being pretty much anything but celibate, ascetic, and peaceful.
As seen in the Heptameron, for example, where friars were presented as lechers at best and rapists at worst. I know.
But since many such accounts were written by Protestants whose goal was to demonize the Catholics of their day, I tend to take such rumors with a grain of salt.:/