Henry IV, King (Kingdom of Burgundy) : All Data

Henry IV was the King of the Kingdom of Burgundy from 1071 to 1101. During his reign, he faced several significant wars and revolts. One of the most notable conflicts was the Investiture Controversy, which lasted from 1075 to 1122. This conflict arose between Henry IV and Pope Gregory VII over the appointment of bishops and the control of church affairs. Another important war during Henry IV's rule was the Great Saxon Revolt, which occurred from 1073 to 1075. This rebellion was led by the Saxons against Henry IV's rule and resulted in a significant loss of power for the king.