Lothair III

Timeline

1. 1101–1106Northeim · SaxonyAround 1101 Lothair accumulated Saxon lands and influence through his wife's family, the Northeimer, forming an anti-Salian camp among the German princes. In 1106 he formally became Duke of Saxony, emerging as Henry V's chief political rival in northern Germany, in concert with the Welf family and other powers.
2. 1106–1110Magdeburg · SaxonyFrom 1106 to 1110, as Duke of Saxony, Lothair resisted Henry V's expansion of imperial power, defending Saxon autonomy at princely assemblies and in military standoffs. Though not yet elected king, he laid the political foundation for his later election as emperor in 1125, making him a key figure of the opposition in the final years of the Salian dynasty.