|←Author Index: Jo||Pope John IX
|Pope from 898 to 900.|
Works by John IX
||There are no works on Wikisource by this author. If you'd like to add a new text, please review Help:Adding texts.|
Works about John IX
- “Pope John IX,” in Catholic Encyclopedia, 1913.
- “John IX (pope)” in Encyclopædia Britannica, (11th ed.), 1911