Heinrich (Henry) IV ascended to King of the Germans in 1056 at the age of six. From 1084 until his forced abdication in 1105, he was also referred to as the King of the Romans and Holy Roman Emperor . He was the third emperor of the Salian dynasty and one of the most powerful and important figures of the 11th century. His reign was marked by the Investiture Controversy with the Papacy and several civil wars over his throne both in Italy and Germany. He died of illness, soon after defeating his son's army near Visé, in Lorraine.