Denmark

Harald Bluetooth becomes King of Denmark - later converts to Christianity, unites Denmark and Norway

Sweyn Forkbeard rebels against father Harald - civil war ends with Harald's death, Sweyn becomes king

Magnus the Good becomes King of Denmark - son of Olaf II rules both Norway and Denmark

Sweyn II Estridsen becomes King - nephew of Cnut, fights Magnus for Danish throne, establishes independence

Valdemar I the Great becomes sole king - ends civil war period, begins Danish golden age