Medieval Norway was notorious for its brutal methods of removing political opponents, but the fate that befell King Magnus IV stands out in history as a particularly sophisticated form of cruelty. Mutilated, blinded, and confined to a monastery, the king was meant never to pose a threat to his enemies again. The problem was, no one predicted that this seemingly neutralized competitor would return to the fight for the Norwegian throne.
A Vow Made to a Sick King
Magnus was born around 1115 as the only son of King Sigurd I the Crusader, renowned for his crusade to the Holy Land. However, he was born out of wedlock—the sagas don’t even record his mother’s name. From his official marriage to Kyivan princess Malmfrid, Sigurd only had a daughter, Kristina.
Towards the end of his life, Sigurd I began losing his sanity, which a clever visitor from Ireland quickly exploited. Harald Gille arrived at the Norwegian court in 1127 or 1128, claiming to be the son of the late King Magnus III Barefoot, who died in 1103—in other words, he was allegedly the uncle of the young Magnus.
The mentally ill Sigurd accepted Harald as his brother and named him co-heir to the throne alongside his own son. But there was one condition: Harald had to swear loyalty to Magnus. He gladly took the oath—but never intended to keep it for a moment.
The Mistake That Cost Him His Sight
Sigurd I died in 1130, and both claimants were proclaimed kings of Norway. Historians recognize this date as the start of a civil war that would tear the country apart for the next 110 years.
Two rival factions emerged in the kingdom: the Birkebeiner, who sought unification under a single monarch, and the Baglar, backed by bishops and advocates of the claim that every royal descendant had a right to a share of power.
Initially, fortune favored Magnus. His forces crushed Harald’s supporters, forcing his rival to flee to Denmark in August 1134. Then the young king made a mistake that would cost him more than just the crown—he disbanded his troops. The following year, Harald returned with Danish reinforcements and easily captured the unsuspecting opponent.
The victor was faced with a dilemma: how to remove his competitor without committing regicide? The solution was as simple as it was barbaric. Harald ordered Magnus to be blinded, castrated, and to have one leg amputated. Afterward, he had his mutilated rival shut away in the monastery of Nidarholm as a monk. In theory, he spared his life; in practice, he took everything from him.
The Mutilated King Returns
Harald Gille did not enjoy full power for long. Just two years later, another pretender arrived—Sigurd, known by his opponents as the Evil Deacon, who also claimed to be a son of Magnus III Barefoot. The Norwegian throne attracted supposed offspring of the monarch who had died decades earlier like a magnet. Under pressure from the opposition, Harald agreed to share power with his new rival.
This compromise did not save his life. In December 1136, Sigurd the Evil Deacon murdered Harald, setting the stage for the most unexpected twist in this story. Blinded and mutilated, Magnus left the monastery and in 1137 proclaimed himself king of Norway once again.
A man without eyes, unable to father children, with one leg—and yet he managed to stay in the power struggle for another two years. He died only in 1139, leaving behind a legend of extraordinary determination and a warning to all who thought that mutilation alone would be enough to permanently eliminate a political foe. For the next hundred years, Norwegians would continue to learn that, in the battle for the throne, no method guarantees peace.
Autor
Rory Thornfield
Rory's grandfather left behind a wartime diary filled with accounts of a minor Burma skirmish that history books never mentioned. Reading it, Rory realized: behind every famous battle are dozens of forgotten struggles, each with its own human drama.
His preferred topics: The overlooked corners of military history – secondary campaigns, shadow battalions, local conflicts that never made headlines. From medieval sieges to twentieth-century expeditions, he focuses on the soldiers, not the generals. The people who faced impossible choices and carried those experiences forever.
Rory strips away the romanticism without losing respect for those who served. He combines tactical analysis with personal stories, examining human endurance and moral complexity rather than celebrating warfare. His writing is balanced, thoughtful, and deeply researched.
Outside work, Rory visits forgotten battlefields (now quiet farmland), photographs war memorials nobody tends anymore, and interviews veterans' families.