Adeodatus II
- Brief account of his pontificate, by Karen Rae Keck.
- http://www2.evansville.edu/ecoleweb/glossary/adeodatusii.html

Adeodatus
- An account of his pontificate, by Joseph Brusher.
- http://www.cfpeople.org/Books/Pope/POPEp77.htm

Pope St. Adeodatus
- Brief article on this Roman monk, opponent of Monothelitism, d. 676. Called Adeodatus II to distinguish him from his predecessor St. Deusdedit, who is also called Adeodatus.
- http://www.newadvent.org/cathen/01142a.htm