Rudolf of Rheinfelden

Who was Rudolf of Rheinfelden?

Rudolf of Rheinfelden was Duke of Swabia and brother-in-law of King Henry IV of Germany.

In 1077, upon the outbreak of the Investiture Controversy, Duke Rudolf was elected alternative king or German antiking by the politically oriented anti-Henry German aristocrats, whose rebellion became known as the Great Saxon Revolt. In the struggle for supremacy in the Holy Roman Empire, he died as a result of battlefield injuries as his faction met Henry's forces and defeated them in the Battle of Elster .