Pope Pius V is remembered for his role in implementing the reforms of the Council of Trent, and his excommunication of Elizabeth I of England. He also led the Catholic forces in the Battle of Lepanto (1571) against the Ottoman Empire. Birth name: Antonio Ghislieri Nationality: Papal States Born: January 27, 1504 Died: May 11, 1572 Pontificate: January 27, 1566 – May 11, 1572