The Millefiore Family or Millefiore Famiglia ("Millefiore" roughly means "Thousands of Flowers", and "Famiglia" means "family" in Italian), is a fictional Mafia family in the anime and manga series Reborn!.
The Millefiore family takes over as the major antagonists following the Vongola Ring Battles between Tsuna's family and the Varia. After arriving nine years and 10 months into the future, Tsuna discovers that the Millefiore have succeeded in crushing the Vongola, effectively leaving the strongest mafia family in a state of emergency. Following the attack, the Millefiore have begun a methodical elimination of all Vongola members and associates. White Spell and Black Spell shows the two different families that were combined to be one. White Spell is led by Byakuran and Uni leads the Black Spell
informations take from wikipedia.