The age of the Hohenstaufen begins with an emperor who wasn’t a Hohenstaufen. Lothar of Supplinburg was a Saxon duke who had spent his early years in opposition to the reigning Salian house and their allies, the Hohenstaufen. The circumstances of his election victory against Frederick of Hohenstaufen kicks off the long lasting political antagonism between Staufer and Welf, between Guelphs and Ghibellines. But despite the outward differences in background and initial political positioning, Lothar III continued the Salian policy of forcing their will upon the princes and pushing back against the papacy. The new element he brings into imperial policy is the Eastern expansion that will ultimately bring about the Baltic empire of the Teutonic Knights and the Hanse.

Emperor Lothar III, an unexpected leaderA narrative history of the German people from the Middle Ages to Reunification in 1991. Episodes are 25-35 min long and drop on Thursday mornings.
“A great many things keep happening, some good, some bad”. Gregory of Tours (539-594)
So far we have covered:
Ottonian Emperors (# 1- 21)
– Henry the Fowler (#1)
– Otto I (#2-8)
– Otto II (#9-11)
– Otto II (#11-14)
– Henry II (#15-17)
– Germany in 1000 (#18-21)
Salian Emperors(#22-42)
– Konrad II (#22- 25)
– Henry III (#26-29)
– Henry IV/Canossa (#30-39)
– Henry V (#40-42)
– Concordat of Worms (#42)
Early Hohenstaufen (#43-69)
– Lothar III (#43-46)
– Konrad III (#47-49)
– Frederick Barbarossa (#50-69)
Late Hohenstaufen (#70-94)
– Henry VI (#70-72)
– Philipp of Swabia (#73-74)
– Otto IV (#74-75)
– Frederick II (#75-90)
– Epilogue (#91-94)
Colonisation of the East (#95-108)
The Hanseatic League (#109-127)
The Teutonic Knights (#128-137)
From the Interregnum to the Golden Bull (#138 -185)
– Rudolf von Habsburg (#139-141)
– Adolf von Nassau (#142)
– Albrecht von Habsburg (#143)
– Heinrich VII (#144-148)
– Ludwig the Bavarian (#149-153)
– Karl IV (#154-163)
The Reformation before the Reformation
– Wenceslaus the Lazy (#165)
– The Western Schism (#166/167)
– The Ottomans (#168)
– Sigismund (#169-#184
The Empire in the 15th Century
– Mainz & Hessen #186
– Printing #187-#188
– Universities #190
– Wittelsbachs #189, #196-#199
– Baden, Wuerrtemberg, Augsburg, Fugger (#191-195)
– Maps & Arms (#201-#202)
The Fall and Rise of the House of Habsburg
– Early Habsburgs (#203-#207)
– Albrecht II (#208)
– Friedrich III (#209-#215)
– Maximilian I (#215-
Welcome to Season 3 of the History of the Germans, diving into one of the most dramatic and consequential periods of medieval German history — the age of the Hohenstaufen. But before the Hohenstaufen can take centre stage, someone else has to get out of the way first.
It is 1125, and the Salian dynasty is dying with Emperor Henry V in the palace of the Bishop of Utrecht. After a century of Salian rule — marked by civil war, the Investiture Controversy, and a catastrophic weakening of imperial authority — the princes of the realm face a fundamental question: what is an emperor actually for?
In this episode, we set the scene for the next great chapter of German medieval history by exploring the three strategies available to any new emperor seeking to rebuild royal power, and then watch as those strategies are tested almost immediately — at one of the most chaotic and dramatic royal elections the Holy Roman Empire ever produced.
At Mainz in August 1125, four great dynasties — the Hohenstaufen, the Welf, the Babenberg, and the Supplinburg — converge to elect a new king. What follows is a masterclass in medieval political theatre: tearful refusals, procedural confusion, a man jumping on a horse at entirely the wrong moment, and a last-minute betrayal that will echo through German and Italian politics for the next 150 years.
Topics covered in this episode:
- The collapse of Salian imperial authority and the legacy of the Investiture Controversy
- The three strategic options facing any new Holy Roman Emperor
- The key players at the election of 1125: Lothar of Supplinburg, Frederick of Hohenstaufen, Henry the Black of Bavaria, and Leopold of Austria
- Why not wanting the crown was the surest way to win it
- The Welf betrayal that ignited the Guelf vs Ghibelline conflict across medieval Europe
- The election of Lothar III — and why the age of the Hohenstaufen paradoxically begins without one
Keywords: Holy Roman Empire, Hohenstaufen, Salian dynasty, Lothar III, medieval German history, Welf dynasty, Guelph Ghibelline, election 1125, Frederick of Hohenstaufen, History of the Germans podcast, medieval Europe, Investiture Controversy, House of Babenberg
The music for the show is Flute Sonata in E-flat major, H.545 by Carl Phillip Emmanuel Bach (or some claim it as BWV 1031 Johann Sebastian Bach) performed and arranged by Michel Rondeau under Common Creative Licence 3.0.
As always:
Homepage with maps, photos, transcripts and blog: www.historyofthegermans.com
If you wish to support the show go to: Support • History of the Germans Podcast
For do it yourself merchandise go to: Merchandise • History of the Germans Podcast
Facebook: @HOTGPod
Threads: @history_of_the_germans_podcast
Bluesky: @hotgpod.bsky.social
Instagram: history_of_the_germans
Twitter: @germanshistory
To make it easier for you to share the podcast, I have created separate playlists for some of the seasons that are set up as individual podcasts. they have the exact same episodes as in the History of the Germans, but they may be a helpful device for those who want to concentrate on only one season.
So far I have:
Salian Emperors and Investiture Controversy
Fredrick Barbarossa and Early Hohenstaufen
The Holy Roman Empire 1250-1356
The Reformation before the Reformation

1125
Death of Emperor Henry V and election of Lothar of Supplinburg as Emperor Lothar III.
1130-1138
Church falls victim to a schism that pulls in all European monarchs. Lothar fights his way to Rome but dies upon his return
Episode 45 & 46