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Medieval Papal Palace Unearthed Beneath Rome During Jubilee Renovations

Italian authorities confirm the discovery of a 9th–13th century papal residence under Piazza San Giovanni in Laterano, offering new insights into Rome’s layered history.

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Overview

  • Archaeologists uncovered the remains of a medieval papal palace beneath Piazza San Giovanni in Laterano during preparations for the 2025 Catholic Jubilee.
  • The structure, dating from the 9th to 13th centuries, served as the residence of popes before the papacy moved to Avignon in 1305 and later to the Vatican.
  • The walls, constructed with reused volcanic rock, show evidence of restoration and may have served defensive purposes during periods of medieval conflict.
  • This discovery, described as 'extraordinarily important' by the Italian Ministry of Culture, marks the first extensive excavation of the square in modern times.
  • Preservation efforts are underway, with plans for further study to map the full extent of the complex as Rome prepares for the influx of Jubilee pilgrims.