Of what countries was Strut-Harald's half-brother the king?
Harald Bluetooth Harald "Bluetooth" Gormsson (Old Norse: "Haraldr Gormsson" , Danish: "Harald Blåtand Gormsen" , died c. 985/86) was a king of Denmark and Norway.
Magnus, Duke of Saxony Magnus (  1045 – 23 August 1106) was the duke of Saxony from 1072 to 1106. Eldest son and successor of Ordulf and Wulfhild of Norway, he was the last member of the House of Billung.