Historical biography archive · Updated 2026-11-03

Gregory XIII Biography and Timeline

Follow Gregory XIII through 3 dated historical records for Italy.

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Gregory XIII, historical timeline

A chronological timeline drawn from matching World History Database records.

3Distinct records

1 of 1Page

1572–1581Years on this page

1572

Pope

Pope · Vatican · Religion / Roman Catholic Church

Appointed Pope

Role range: 1572-1585

1581

Council of Trent

Pope · Religion / Roman Catholic Church

Carries out the decrees of the Council of Trent

Role range: 1572-1585

1581

Reform of Calendar

Pope · Religion / Roman Catholic Church

Adds an extra day to the Julian calendar, 29th Feb every 4 yrs

Role range: 1572-1585

Records, sources and methodology

These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.