Günther Prien made history as one of the most audacious U-boat commanders of World War II. His daring attack on Scapa Flow shocked Britain, while his death under mysterious circumstances stunned Nazi Germany. Who was the man known as the Bull of Scapa Flow?
Prien’s Early Life
Günther Prien was born on January 16, 1908, in Lübeck as the son of a local judge. His idyllic childhood ended with his parents’ divorce, after which he moved with his mother and siblings to Leipzig. Hyperinflation and the economic chaos of the Weimar Republic pushed the family to the brink of poverty.
At just fifteen, Prien made a decision that would shape his entire life. He dropped out of school and joined the merchant navy. Starting at the very lowest rank as a steward on a ship, he worked his way up over the next eight years, learning telegraphy, navigation, and maritime law. The sea became his university.
When Adolf Hitler began rebuilding the German navy in 1935, Prien saw an opportunity. His experience in the merchant navy allowed for rapid promotion. He volunteered for submarine service, despite the boats being cramped, dangerous, and smelling of diesel fuel. For the young officer, something else mattered more: prestige and the chance to prove himself.
The Night That Changed Everything
On October 13, 1939, U-47 under Prien’s command executed a maneuver thought to be impossible. The submarine made its way through the narrow Kirk Sound passage into Scapa Flow, the main base of the British Home Fleet. This was the heart of Britain’s naval might, a location theoretically inaccessible to the enemy.
In the dead of night, U-47’s torpedoes struck the battleship HMS Royal Oak. The massive ship sank within minutes, taking 833 crew members with it. Prien then quietly guided his boat out of the bay, passing British guard posts that had no idea of what had just happened.
The success was spectacular not only militarily. Striking at the very heart of the British fleet had huge propaganda impact. Hitler personally received Prien, and the Nazi press turned him into a national hero. The U-47 crew painted a charging bull on their submarine’s tower, bestowing Prien with his nickname for life.
Fanatic at Sea
American journalist William Shirer, who met Prien at a Berlin press conference after the Scapa Flow success, had no doubt about the German ace’s character. He described him as arrogant and a fanatical Nazi. This wasn’t exaggeration or journalistic malice.
Prien, like his superior Karl Dönitz, was a convinced Nazi rather than an opportunist. He believed in the Third Reich’s ideology and pursued its goals with total dedication. During the following months of the Battle of the Atlantic, his U-47 sank 31 ships totaling almost 200,000 tons, and severely damaged eight more.
For Allied merchant sailors and their escorts, Prien was a nightmare rising from the depths. For Nazi propaganda, he was the model German soldier. The duality of his figure still sparks controversy among historians trying to separate military skill from ideological commitment.
The Last Patrol
On February 19, 1941, U-47 departed Lorient on another patrol. No one suspected it would be the last voyage of the Bull of Scapa Flow. In late February, Prien located a convoy of thirty-nine vessels and called for support. Condor bombers sank seven ships, while Prien added three more under the cover of darkness.
A few days later, with fog over the Atlantic, Prien hunted alongside another U-boat ace, Otto Kretschmer. Suddenly, the fog lifted revealing British destroyers. Both subs quickly dived, listening to the sounds of depth charges exploding overhead.
After March 7, 1941, U-47 fell silent forever. What exactly happened remains unknown to this day. Historians consider several possibilities: striking a minefield, being hit by its own malfunctioning torpedo, or an attack by British corvettes HMS Camellia and HMS Arbutus. For years, it was believed the destroyer HMS Wolverine was responsible, but newer research casts doubt on that theory.
Shock on the Rhine
When the Third Reich authorities finally confirmed Prien’s death, German society was in shock. He was a propaganda hero—a symbol of German supremacy at sea. His disappearance undermined the myth of U-boat invincibility.
Historians compare the shock caused by Prien’s death to what the British later felt after Malcolm Wanklyn was lost with HMS Upholder, or Americans after Mush Morton disappeared with USS Wahoo. All three were legends of their submarine fleets, and their loss symbolized a brutal truth of war: even the best are not immortal.
Günther Prien rests somewhere on the bottom of the North Atlantic with his crew. His final resting place remains unknown, as do the precise circumstances of his fate. The Bull of Scapa Flow, who terrorized Allied convoys, became himself the victim of a merciless ocean and an equally merciless war.
Autor
Margot Cleverly
Margot's journey into women's history began with a box of forgotten letters in a Cambridge archive – suffragettes whose voices had been silenced for over a century. Since then, she's been on a mission to uncover the stories history overlooked.
What she writes about: Queens who ruled from the shadows. Scientists whose male colleagues took credit. Revolutionaries who risked everything. But also ordinary women – those who survived wars, raised families through upheaval, and shaped their communities in ways no one bothered to record.
Margot turns historical figures into real people. She writes with warmth and detail, making centuries-old stories feel surprisingly relevant. Rigorous research meets accessible storytelling – no dusty academic jargon, just compelling narratives backed by solid facts.
When she's not writing, you'll find her in regional archives, collecting oral histories, or visiting sites connected to the women she writes about.