This article discusses the embroidered skull reliquary on foot, kept in the Linköping Castle and Cathedral Museum (SHM 3920:6). The reliquary was examined by Agnes Branting and Andreas Lindblom in 1928 and discussed in this journal by Axel Romdahl in 1929. Inger Estham describes the object in the 2001 publication on Linköping Cathedral and suggests that it was a gift from Vadstena Abbey to the cathedral for the translation of Bishop Nils Hermansson's relics in 1515. Our analysis of the textiles, the embroidery, the traces of lost ornaments and the iconography has led us to believe that the assumed provenance from the hands of the nuns of Vadstena Abbey is correct. However, the decoration on top of the lid, forming a typical Birgittine crown, would not be correct for a bishop: it wouldinstead be most appropriate for a Birgittine nun. Furthermore, the decoration and the execution of the embroidery correspond to textile production in Vadstena Abbey in the mid-15th century, not the early 16th. Finally, a description of the skull reliquary used at the translation of St. Catherine of Vadstena in 1489 fits rather well with what the Linköping reliquary is likely to have looked like originally. We therefore dismiss the reliquary's association with the translation of Bishop Nils Hermansson in 1515 and instead suggest a date no later than 1489.