Hohenstaufen Emperors and the Italian Campaigns (1138–1254)

1. Conrad III elected King of the Romans

   Mar 7, 1138Labels: Conrad III, Hohenstaufen, German princes

   • Britannica
   • King Romans

2. Conrad III joins the Second Crusade

   May 1, 1147Labels: Conrad III, Second Crusade

   • 1147
   • King Romans

3. Frederick I Barbarossa elected King of the Romans

   Mar 4, 1152Labels: Frederick I, Hohenstaufen

   • Britannica
   • 1152 Election

4. Frederick I crowned Holy Roman Emperor in Rome

   Jun 18, 1155Labels: Frederick I, Papacy

   • Britannica
   • Barbarossa

5. Diet of Roncaglia asserts imperial “regalian” rights

   Nov 1, 1158Labels: Diet of, Frederick I

   • Fordham
   • Barbarossa

6. Imperial forces capture and devastate Milan

   Mar 6, 1162Labels: Milan, Imperial army

   • 1162
   • Barbarossa

7. Lombard League defeats Frederick at Legnano

   May 29, 1176Labels: Lombard League, Battle of

   • Legnano
   • Britannica

8. Treaty of Venice ends schism and sets a truce

   Jul 1, 1177Labels: Treaty of, Pope Alexander

   • Venice Treaty
   • Legnano

9. Peace of Constance recognizes Lombard city privileges

   Jun 25, 1183Labels: Peace of, Lombard communes

   • Constance Peace
   • Britannica

10. Henry VI crowned Holy Roman Emperor

    Apr 15, 1191Labels: Henry VI, Holy Roman

    • Britannica
    • Henry VI

11. Henry VI conquers the Kingdom of Sicily

    Jan 1, 1194Labels: Henry VI, Kingdom of

    • Sicily Conquest
    • Henry VI

12. Frederick II crowned Holy Roman Emperor

    Nov 22, 1220Labels: Frederick II, Kingdom of

    • Frederick II
    • King Romans

13. Gregory IX excommunicates Frederick II

    Sep 29, 1227Labels: Pope Gregory, Frederick II

    • Sixth Crusade
    • Britannica

14. Treaty of San Germano reconciles pope and emperor

    Jul 23, 1230Labels: Treaty of, Frederick II

    • San Germano
    • Britannica

15. Frederick II issues the Constitutions of Melfi

    Sep 1, 1231Labels: Constitutions of, Frederick II

    • Britannica
    • Melfi Code

16. Frederick II wins at the Battle of Cortenuova

    Nov 27, 1237Labels: Battle of, Frederick II

    • Cortenuova
    • Frederick II

17. Council of Lyon declares Frederick II deposed

    Jul 17, 1245Labels: Council of, Pope Innocent

    • TELMA
    • Council Lyon

18. Frederick II dies; Italy enters a successor crisis

    Dec 13, 1250Labels: Frederick II, Succession crisis

    • History Today
    • Frederick II

19. Conrad IV dies, ending the main Hohenstaufen line

    May 21, 1254Labels: Conrad IV, Hohenstaufen

    • Conrad IV
    • King Romans