Osterby Man, also known as the Osterby Head, is the preserved head of a man discovered in a peat bog near Osterby in Schleswig-Holstein, northern Germany, in 1948. He was approximately 50 to 60 years old when he died. Only his head was recovered, together with fragments of a roe deer-skin cape. His hair survived unusually well and was tied in a distinctive Suebian knot, a hairstyle associated with the Germanic Suebi.
Osterby Man suffered severe blunt-force trauma to the left side of his head and was decapitated, although the surviving remains do not establish which injury caused his death or the order in which they occurred. Radiocarbon dating of a hair sample produced a date of 75–130 CE, placing him in the Roman Iron Age, but the identification of that sample as belonging to Osterby Man has since been questioned.
Discovery On 26 May 1948, Osterby Man was discovered by brothers Otto and Max Müller while they were cutting peat on their father's land near Osterby in Schleswig-Holstein, Germany.Karl Kersten, "Ein Moorleichenfund von Osterby bei Eckernförde", Offa. Berichte und Mitteilungen zur Urgeschichte, Frühgeschichte und Mittelalterarchäologie 8 (1949): 1–2. Heather Catherine Gill-Robinson, The Iron Age Bog Bodies of the Archäologisches Landesmuseum, Schloss Gottorf, Schleswig, Germany, PhD diss., University of Manitoba, 2005. As the brothers worked, Max Müller noticed fragments of a roe deer-skin garment protruding from the bog. Beneath the leather, approximately below the modern ground surface, they uncovered Osterby Man's preserved head.Karl Schlabow, "Haartracht und Pelzschulterkragen der Moorleiche von Osterby", Offa 8 (1949): 3–7.
The discovery was reported to the museum in Schleswig. Despite intensive searches by the Müller brothers and others, no additional parts of Osterby Man's body were recovered.Peter V. Glob, The Bog People: Iron-Age Man Preserved, trans. Rupert Bruce-Mitford (London: Faber and Faber, 1969; repr. New York: New York Review Books, 2004), p. 116.
Condition
Only Osterby Man's head was recovered. The skull survived nearly complete but had been broken into several pieces. The acidic conditions in the bog had removed much of the mineral content from the bone, causing it to shrink and turn dark brown to almost black. The weight of the peat above the head had also distorted the shape of the skull.
Most of the skin and other soft tissue of the face had disappeared, but the underlying facial skeleton was generally well preserved, with the upper part of the face nearly undamaged. A small area of skin survived over the upper left side of the skull and extended down towards the left temple.
Clothing and associated items The skull was wrapped in fragments of a garment, measuring approximately , consisting of tanned pieces of leather sewn together. Microscopic analysis suggested, based on the hairs, that they were from roe deer. The neck opening was lined with a strip of leather about wide. All seams had been sewn with small stitches in catgut. Some appeared to be repairs.Wijnand van der Sanden, trans. Susan J. Mellor, Through Nature to Eternity: The Bog Bodies of Northwest Europe, Amsterdam: Batavian Lion, 1996, , pp. 144–146. Textile archaeologists identified the garment as a skin cape; similar cloaks or capes have been found with other archaeological finds, including Elling Woman, Haraldskær Woman, Dröbnitz Girl, Kayhausen Boy and Jührdenerfeld Man.
Hair
Osterby Man's hair is unusually well preserved. Much of it survives on the head, together with some loose strands separated from the main arrangement. The hair is thin and slightly wavy and measures about long.Peter V. Glob, The Bog People: Iron-Age Man Preserved, trans. Rupert Bruce-Mitford (London: Faber and Faber, 1969; repr. New York: New York Review Books, 2004), p. 117. Although the surviving hair is reddish brown, this colour developed during burial in the bog. Microscopic examination indicated that it had originally been dark blond, with some white hairs. He also had thinning hair at the crown.Karl Schlabow, "Haartracht und Pelzschulterkragen der Moorleiche von Osterby", Offa 8 (1949): 3–7.
The surviving hair is arranged near the right temple in a hairstyle generally identified as a Suebian knot. In the reconstructed arrangement, the long hair is divided vertically into two sections at the back of the head. One section is brought around the left side of the head and low across the forehead towards the right temple, while the other is brought above the right ear. The two sections are twisted together and formed into a loop, and the loose end is passed through the loop. The tension of the twisted hair holds this type of knot in place without a pin or other fastening. Experimental reconstructions have shown that the hairstyle can be made with long, thin hair like Osterby Man's and that hair grease can make the arrangement more secure.
The exact original arrangement of Osterby Man's hair is uncertain. After the head was discovered in Schleswig-Holstein in 1948, German archaeologist Karl Schlabow studied the hair and published his reconstruction of the hairstyle in 1949. Later researchers have questioned whether the position and arrangement of the knot now visible on the preserved head accurately reproduce its condition when it was discovered.
The name "Suebian knot" comes from the Suebi, a group of Germanic peoples described by the Roman historian Tacitus. In chapter 38 of his Germania, written around 98 CE, Tacitus described Suebian men as combing their hair sideways and fastening it in a knot. He wrote that among the Suebi the hairstyle distinguished free men from enslaved people and that older men continued to wear it as their hair greyed. Similar knotted hairstyles are also depicted in Roman representations of Germanic men.Johannes van der Plicht, Wijnand van der Sanden, A. T. Aerts and H. J. Streurman, "Dating bog bodies by means of 14C-AMS", Journal of Archaeological Science 31.4 (2004): 471–491, p. 480.
Osterby Man is not the only archaeological find with hair identified as a Suebian knot. Dätgen Man, another male bog body found in Schleswig-Holstein, had long hair arranged in a similar knot, although his was positioned at the back of the head rather than near the temple. British archaeologist Melanie Giles has compared Osterby Man's hairstyle with that of Dätgen Man, whose similar knot is positioned at the back of the head. Conservation When Osterby Man was recovered in 1948, the head had already been substantially altered by its long burial in the bog. The acidic conditions had removed minerals from the bone and caused the skull to shrink, while pressure from the peat above had changed its shape. The skull had also broken into several pieces.
German anthropologist Peter Löhr studied the skull for his 1950 doctoral dissertation at the Anthropological Institute of Kiel University. He investigated how burial in the bog had affected its size by repeatedly soaking the skull in water, allowing it to dry, and carefully measuring the changes. Löhr found that the skull expanded when wet and concluded that, when fully soaked, it approached its original dimensions.Peter Löhr, "Die Moorleiche von Osterby. Die experimentelle Schrumpfung von Schädeln", Anthropologisches Institut der Universität Kiel, 1950 (PhD dissertation)
The fragmented skull was later reconstructed and stabilized with plaster for museum display. Karl Schlabow, a German archaeologist who worked on the archaeological collections of Schleswig-Holstein, prepared the head for exhibition. His reconstruction included a complete lower jaw with a prominent chin, and Löhr included this jaw in his measurements of the remains.
Later examination revealed that the lower jaw did not belong to Osterby Man. Schlabow had added an unrelated jaw while preparing the head for exhibition.Thomas Brock, "Windeby: Geheimnis der Moorleichen gelüftet", Der Spiegel, 17 February 2007
Scientific analysis
Body and health
Osterby Man was an adult male, estimated to have been about 50 to 60 years old when he died.Wijnand van der Sanden, tr. Susan J. Mellor, Through Nature to Eternity: The Bog Bodies of Northwest Europe, Amsterdam: Batavian Lion, 1996, , p. 159.
In 2005, Gill-Robinson re-examined Osterby Man as part of a study of the bog bodies held by the State Archaeological Museum at Schloss Gottorf. Analysis of his hair provided evidence about his diet during at least the final year of his life. Stable-isotope analysis indicated that he ate meat only rarely and did not consume marine foods such as fish or shellfish. A parasitological examination of his hair found no evidence of head lice.
Dating
Osterby Man's hair is tied above his right temple in a Suebian knot. The hairstyle provides evidence for a date in the Roman Iron Age. In the first century CE, the Roman historian Tacitus described the style in his Germania as characteristic of free men among the Suebi, and it is also depicted in Roman sculpture.Johannes van der Plicht, Wijnand van der Sanden, A. T. Aerts and H. J. Streurman, "Dating bog bodies by means of 14C-AMS", Journal of Archaeological Science 31.4 (2004): 471–491, p. 480.
More than 50 years after Osterby Man was discovered in Schleswig-Holstein in 1948, Dutch physicist Johannes van der Plicht and his colleagues published a radiocarbon date for a sample attributed to his hair. In 2004, they reported a calibrated date of 75–130 CE.
The researchers identified an important limitation with the result. The hair was so fragile that it could not undergo the usual chemical treatment used to remove possible contamination before radiocarbon dating. They therefore could not determine whether the date obtained from the sample was correct.Johannes van der Plicht, Wijnand van der Sanden, A. T. Aerts and H. J. Streurman, "Dating bog bodies by means of 14C-AMS", Journal of Archaeological Science 31.4 (2004): 471–491, pp. 480, 487.
The sample had also come from the private collection of German bog-body researcher Alfred Dieck, rather than being taken directly from Osterby Man's remains at Schloss Gottorf, raising uncertainty over whether the dated hair belonged to Osterby Man.Wijnand van der Sanden, trans. Susan J. Mellor, Through Nature to Eternity: The Bog Bodies of Northwest Europe, Amsterdam: Batavian Lion, 1996, , p. 81.Wijnand van der Sanden, "C14-Datierungen von Moorleichen aus Niedersachsen und Schleswig-Holstein", Die Kunde N.F. 46 (1995): 137–155. Cause of death Osterby Man suffered severe blunt-force trauma to the left side of his head. The impact crushed an area of the skull about across, shattered the bone around his left temple, and drove fragments of bone inward. The injury may have been fatal.
Cut marks on a vertebra in his neck also show that Osterby Man was decapitated. The surviving remains do not establish whether the blow to the head or the decapitation caused his death, or in which order the injuries occurred.
The combination of severe head trauma and decapitation has been interpreted as evidence that Osterby Man was deliberately killed. Researchers have proposed explanations including execution and human sacrifice, but the surviving remains do not establish why he was killed or why his head was deposited in the bog. Exhibition Osterby Man is part of the collection of the Museum für Archäologie Schloss Gottorf in Schleswig, Germany.
In 2025, Gottorf Castle closed for extensive renovation and modernization, requiring its archaeological exhibitions to be removed. Osterby Man was among five bog-body finds sent on a multi-year loan to Museum Silkeborg in Silkeborg, Denmark, about from Schleswig. The remains were transported in specially designed climate-controlled crates. The group also included remains from Windeby, Rendswühren and Damendorf, and the preserved hair of Dätgen Man.