Na PlosOne, lê-se no resumo do artigo «Analysis of the Putative Remains of a European Patron Saint-St. Birgitta» que:
Saint Birgitta (Saint Bridget of Sweden) lived between 1303 and 1373 and was designated one of Europe's six patron saints by the Pope in 1999. According to legend, the skulls of St. Birgitta and her daughter Katarina are maintained in a relic shrine in Vadstena abbey, mid Sweden. The origin of the two skulls was assessed first by analysis of mitochondrial DNA (mtDNA) to confirm a maternal relationship. The results of this analysis displayed several differences between the two individuals, thus supporting an interpretation of the two skulls not being individuals that are maternally related. Because the efficiency of PCR amplification and quantity of DNA suggested a different amount of degradation and possibly a very different age for each of the skulls, an orthogonal procedure, radiocarbon dating, was performed. The radiocarbon dating results suggest an age difference of at least 200 years and neither of the dating results coincides with the period St. Birgitta or her daughter Katarina lived. The relic, thought to originate from St. Birgitta, has an age corresponding to the 13th century (1215-1270 cal AD, 2σ confidence), which is older than expected. Thus, the two different analyses are consistent in questioning the authenticity of either of the human skulls maintained in the Vadstena relic shrine being that of St. Birgitta. Of course there are limitations when interpreting the data of any ancient biological materials and these must be considered for a final decision on the authenticity of the remains.
Ou seja, embora a análise de ADN indique claramente que os crânios são falsificações, isto é, não podem ser de mãe e filha como é suposto e a sua datação indique que nenhum deles sequer corresponde à altura em que viveu a «padroeira» unilateral da Europa, quase que aposto que, tal como outras fraudes reconhecidas como tal, o sudário de Turim ou o sangue seco de San Gennaro, por exemplo, continuarão a ser «adorados» como se nada tivesse acontecido. Porque, «as devoções de longa data profundamente enraizadas no coração do povo não podem ser varridas sem escândalo nem distúrbios populares» e, por isso, não existem problemas morais «na continuação de um erro que foi transmitido em boa fé por muitos séculos»...
Isabel Moreira
Miguel Vale de AlmeidaRogério da Costa Pereira
Rui Herbon
