Birka was abandoned in the latter half of the tenth century. Sigtuna, about thirty-five kilometers northeast, grew to replace it as the Mälaren region’s center of commerce. The reasons for Birka’s decline are debated: Gotland’s stronger trading position, the shifting of routes, possible conflict. The island returned to rural use. Birka became a memory, then an archaeological site, then — in 1993 — a UNESCO World Heritage Site.
Bj 581 was part of Stolpe’s excavations. He opened it in 1878.
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## The Grave: What Stolpe Found and Recorded
The burial Stolpe designated number 581 was not one of Birka’s simpler graves. It was a chamber grave — the most elaborate and resource-intensive form of Viking Age burial — built from wooden planks into a structure approximately 3.45 meters long and 1.75 meters wide. A large boulder marked the site from above, visible from the settlement.
The positioning mattered. Bj 581 sat on an elevated terrace adjacent to what is interpreted as the garrison. In the spatial logic of Birka’s burial ground, proximity to the fortification carried meaning. This was not a peripheral burial at the edge of the cemetery. It was placed where it would be seen in relation to the military structure.
Inside the chamber, Stolpe documented an assemblage that would become one of the most discussed in Viking Age archaeology.
The weapons were extensive. A sword of Petersen type E lay in its sheath near the body. A Petersen type M axe head was present. A seax — a single-edged fighting knife — accompanied a small iron knife and a sharpening stone. Two spearheads were recorded, one from a spear placed deliberately in the grave and one apparently thrown in as part of the burial ceremony. Twenty-five arrowheads of Wegraeus type D1 suggested a bow and quiver. Two shield bosses, one positioned against each end wall of the chamber, completed the martial assemblage.