Early release. The register is a draft gathered on September 22, 2026 and not yet verified. Photographs are added as custodians give permission.How the draft was built
Saints & ScienceThe record of the incorrupt saints

Case 010 · Incorruption · Siena, Italy · In preparation

The head of St. Catherine of Siena

A mummified head kept in Siena since 1385, apart from her body, which lies in Santa Maria sopra Minerva in Rome. No scientific study or conservation record has been found.

ChurchNot treated as a miracleCEvidence grade
Part only: head

Full case file in preparation

This entry shows what the research has confirmed so far. The grade C is provisional and is reviewed in the full case file.

The Basilica of San Domenico, SienaCredit printed here once the licensed photograph is added

What the full case file will cover

  • Every recognition of the remains, with its date, physicians, and findings.
  • Every intervention, with its date, who made it, and its source.
  • The natural explanations considered and what remains open.
  • Photographs that the custodian permits, each with its credit.

Sources for this entry

  1. Visit Siena: the relics of St. Catherine

Continue to Case 001: The body of St. Bernadette

Feast day: April 29.