Internet History Sourcebooks Project
Fordham University: Medieval Sourcebook: Henry Iv Letter to Gregory Vii
Contains the full text of Henry IV's response to Gregory VII after being called a "usurper," in which Henry refers to Gregory IV as a "false monk."
Internet History Sourcebooks Project
Fordham University: Medieval Sourcebook: Grant of a Market at Bremen
Fordham's Medieval Sourcebook contains the text of a decree providing minting rights and protection, issued by Holy Roman Emperor Otto I to the merchants of Bremen, 965 A.D..
Internet History Sourcebooks Project
Fordham University: Medieval Sourcebook: Ban on Lay Investitures
Contains the full text of Gregory VII's decrees which banned lay investiture.
Internet History Sourcebooks Project
Fordham University: Medieval Sourcebook: Lay Investitures Forbidden
Contains the full text of Gregory VII's decree banning investitures.
Internet History Sourcebooks Project
Fordham University: Medieval Sourcebook: The Crusade of Frederick Ii
This site, which is provided for by the Fordham University's Medieval Sourcebook, covers the Fifth Crusade or the Crusade of Frederick II.
Internet History Sourcebooks Project
Fordham University: Medieval Sourcebook: First Banning of Henry Iv
Contains the original text of Gregory VII's first order to excommunicate Henry IV.
Internet History Sourcebooks Project
Fordham University: Medieval Sourcebook: Second Banning of Henry Iv
Contains the original text of Gregory VII's second order to excommunicate Henry IV.
Other
Heraldica: The Holy Roman Empire: Structure and Composition
Series of hyperlinked essays discuss facets of the Holy Roman Empire: its beginnings, structure, impact, and end.
Then Again
Then Again: Web Chron: The Franks
This site from the North Park University provides a brief overview of the Franks which refers to the conversion of Frankish leaders and people to Catholic Christianity.
Other
The Thirty Years War: Summary of the Thirty Years War
This site gives a very clear introduction to the Thirty Years War. You can click on any of the sub-headings for more detailed information.
Robin Chew
Lucidcafe: Charlemagne
Gives a short account on the life of Charlemagne plus has links to other sources of information.
Internet History Sourcebooks Project
Fordham University: Medieval Sourcebook: Death of Frederick Barbarossa
This site, which is provided for by the Medieval Sourcebook of the Fordham University, gives a chronicle describing the death of Frederick Barbarossa.
Internet History Sourcebooks Project
Fordham University: History Sourcebook: Germany Under Frederick Barbarossa
Fordham University provides a map of Germany under Frederick Barbarossa.