sentences:  Shortly before the death of Pius II in 1464, Sigismund made his peace with the Church, but Gregory was not absolved.In 1466 he was taken into the service of George Podiebrad, King of Bohemia, and exercised a great influence on the Bohemian king's anti-Roman policy.In two apologies for Podiebrad, Gregory violently attacked Pope Paul II, whom he charged with immorality.