Catholic Encyclopedia
Pope St. Deusdedit, also known as Pope Adeodatus I, d. 618.
For All the Saints
Short biography of Pope St. Deusdedit I.
Popes Through the Ages
Account of the pontificate of St. Deusdedit.
The Ecole Glossary
Brief biography of Pope St. Adeodatus I, by Karen Rae Keck.