Scientists examining human remains from Stirling Castle in Scotland have identified a medieval soldier as the first confirmed victim of a trebuchet attack.
The man, who was in his 20s and stood 5 feet 2 inches tall, suffered catastrophic high-velocity impacts that shattered his bones during a 14th-century siege. Evidence of the unusual fatal trauma was presented by researchers at the European meeting of the Paleopathology Association.
Known to scientists as skeleton 150, the soldier sustained more than 160 separate fractures across his body when a heavy flying projectile pinned him to the ground. Dr Jo Buckberry, an osteoarchaeologist from the University of Bradford, found that his skull had been cracked in 61 places, accompanied by nearly 60 jagged breaks along his ribs and a severe zigzag fracture to his left shoulder.
"The scale of the fractures of his body suggest his death was thankfully instantaneous," Dr Buckberry told the Daily Mail.
In addition to the extensive skull and rib damage, the soldier suffered a broken right femur that was shattered into multiple pieces. Archaeologists noted that the sheer force of the impact reflected an enormous amount of kinetic energy, far beyond typical battlefield hand-to-hand combat wounds such as sword cuts or spear thrusts.
Catastrophic bone injuries
Analyzing the pattern of destruction, Dr Buckberry observed that such severe skeletal damage is rarely seen in historical remains.
"These kinds of fractures are seen in high velocity incidents these days," Dr Buckberry explained, citing modern trauma cases like "car crashes, falls from 20 metres plus with nothing to break the fall, and people hit by trains."
To determine what killed skeleton 150, researchers systematically evaluated and eliminated other potential causes of high-impact trauma.
"I can rule out a fall because the way certain bones have broken suggests the person was standing up, crouching or walking or running when the trauma happened," Dr Buckberry said. "Obviously we can rule out cars and trains in the middle ages, so it's thinking about what is heavy, and moving that fast in the 13th and 14th centuries."
Paleopathology is the scientific study of ancient disease and trauma in human skeletal remains, providing insights into health, violence, and cause of death in historical populations. The University of Bradford in West Yorkshire, England, is a leading research center for archaeological science and human osteology, specializing in analyzing ancient battle trauma.
Discovery at Stirling Castle chapel
The remains of skeleton 150 were first uncovered in 1997 during archaeological excavations beneath the chapel at Stirling Castle. Excavators unearthed a group of nine skeletons buried inside the castle chapel grounds, an unusual resting place that set them apart from standard medieval burials outside fortress walls.
Working alongside researchers from Historic Environment Scotland, Dr Buckberry established that five of the nine skeletons dated back to the early 1300s. All five individuals exhibited extensive signs of physical violence, including cut marks, sharp penetrative injuries, and blunt force trauma that indicated lives cut short in combat.
Stirling Castle sits atop a steep volcanic crag in central Scotland, overlooking the River Forth. Historically known as the gateway to the Scottish Highlands, the fortress occupied a crucial strategic position on the main road to Edinburgh. Historic Environment Scotland is the public body responsible for investigating, preserving, and maintaining Scotland's national monuments and historic sites.
The siege of 1304
The late 13th and early 14th centuries marked a period of intense conflict as Scotland fought a bloody war of independence against the Kingdom of England. Because of its pivotal geographical position, Stirling Castle was a primary target for opposing forces, changing hands five times between 1296 and 1304.
The location of the graves inside the castle chapel led researchers to conclude that the men likely fought and died during the final siege of Stirling Castle in 1304. During this engagement, English forces led by King Edward I mounted a massive attack to force the Scottish garrison holding the fortress to surrender.
Dr Buckberry concluded that a direct strike from a siege engine stone was the most logical explanation for the unique injuries on skeleton 150.
"You've have to be unlucky," Dr Buckberry noted. "Siege engines were deployed to destroy the walls of a castle and either force a surrender or allow the attacking army into the castle. They won't have had particularly precise aims, as the target was a castle, not a person."
War Wolf and medieval trebuchets
Historical records show that during the 1304 siege, King Edward I brought massive siege engines to Stirling, including a relatively new weapon of war: the trebuchet. In particular, English forces constructed War Wolf, which is believed to be the largest trebuchet ever built. Contemporary accounts described War Wolf throwing stones so powerful that a single stone flew through two of the castle's stone walls "like an arrow flying through cloth."
A trebuchet is a powerful medieval siege engine designed to hurl massive projectiles over long distances. The weapon operates using a long wooden arm attached to a pivot, with a heavy counterweight on one end and a sling carrying the missile on the other. When the counterweight drops, the arm swings rapidly upward, launching projectiles weighing more than 100 kilograms (15 stone) over castle walls hundreds of feet away.
First widely used in European warfare around the 12th century, trebuchets were primary offensive weapons used to smash stone fortification walls or launch incendiary objects over castle defenses. They remained dominant siege engines throughout the Middle Ages before being gradually replaced by gunpowder artillery and cannons in later centuries.
