The Tale of the Three Brothers is a fairy tale told to wizard children. Supposedly written by Beedle the Bard, it is published as part of a series of works that collectively are called The Tales of Beedle the Bard. While most wizards view this story as one that teaches children morals (e.g. humility, wisdom, etc.), some believe that the story refers to the Deathly Hallows, three highly powerful magical artefacts coveted by generations of wizards.
The Tale of the Three Brothers