Wikipedia
Strut-Harald (Cone Harald from his cone-shaped helmet of gold) was a semi-legendary jarl or petty king who ruled over the Danish territory of Scania (in what is now southern Sweden) during the late 10th century CE (approximately 975-986). Some of the Norse sagas identify him as the son of Gorm the Old, making him a brother or half-brother of Harald Bluetooth.
According to Snorri Sturluson, Strut-Harald was jarl of " Jomsborg in Wendland."
Strut-Harald was the father of Sigvaldi Strut-Haraldsson and Thorkell the Tall, both of whom became prominent members of the Jomsviking order and who fought against the Norwegian Haakon Jarl. He was also the father of a son named Hemming and a daughter, Tove, who married Sigurd Kappe of Bornholm.
Svein Tjugeskjegg succeeded him in his Scanian territories.