Henry IV (c. 1065/70 – 14 December 1123) was Duke of Carinthia and Margrave of Verona from 1122 until his death.
Henry was the eldest son of Count Engelbert I of Sponheim (died 1096) and his wife, Hedwig, probably a Friulian countess from Mossa.
[1] Engelbert had been a supporter of Pope Gregory VII in the fierce Investiture Controversy and therefore had been divested of his county in the Bavarian Puster Valley by Emperor Henry IV in 1091.
This resulted in the so-called provincia Graslupp, that is, the estates of Neumarkt and Sankt Lambrecht as well as the Murau region, which had previously belonged to the Carinthian county of Friesach, passing to the March of Styria.
He died within a year of taking the rule over Carinthia and was succeeded by his younger brother, Engelbert.