Boniface VII (died July 20, 985), who attained the papal chair in 974, is sometimes styled an antipope. He is supposed to have put Benedict VI to death. A popular tumult compelled him to flee to Constantinople; he carried off a vast treasure, and returned in 984 and removed John XIV, who had been elected in his absence, by murder.
Boniface IX made him cardinal, and employed him as legate in several delicate and important missions.
In August 1405, the cardinal waylaid eleven members of the obstreperous Roman partisans on their return from a conference with the pope, and had them assassinated in his own house and their bodies thrown from the windows of the hospital of Santo Spirito into the street.
Pope, court and cardinals, with the Migliorati faction, fled towards Viterbo.