Name: Harald Blåtand
English Name: Harald Bluetooth
Child of: Gorm den Gamle & Thyra
Reign: 958-986
Marriage: The book "Danmarks dronninger i tusind år" mentions Gunhild and Tove as Harald's queens.
Children: Sven Tveskæg & Gunhild
Death: 985, 986 or 987.
Throne passed to: Sven 2. Tveskæg
Notes:
The Bluetooth technology was named for him - ie. the bluetooth sign is the rune sign of Harald, alledgedly.
Christened Denmark.