https://www.recatho.com/bibliotheque/o/blochet-bertrand--biographie-des-papes-2000/057-agapet-1.html
St Agapet Ier | Biographies des papes - Catholic Encyclopedia 1913 | Recatho
St Agapet Ier | Biographies des papes - Catholic Encyclopedia 1913
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https://www.touteslesprieres.com/de/oeuvres.php?id=10-motu-proprio&idp=57-agapet-1er
Motu Proprio pape Agapet 1er
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