Catacomb of Callixtus
... that remaining papal tombs in the Catacomb of Callixtus were emptied in the ninth century because of a feared Lombard invasion?
... that remaining papal tombs in the <b id="mwA6I"><a href="./Catacomb_of_Callixtus" id="mwA6M" rel="mw:WikiLink" title="Catacomb of Callixtus">Catacomb of Callixtus</a></b> were emptied in the ninth century because of a feared <a href="./Lombards" id="mwA6Q" rel="mw:WikiLink" title="Lombards">Lombard invasion</a>?