May 19May 30: Capture of Zutphen

1591 (MDXCI) was a common year starting on Tuesday of the Gregorian calendar and a common year starting on Friday of the Julian calendar, the 1591st year of the Common Era (CE) and Anno Domini (AD) designations, the 591st year of the 2nd millennium, the 91st year of the 16th century, and the 2nd year of the 1590s decade. As of the start of 1591, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.

Events

June 1June 10: Siege of Deventer

January–March

April–June

July–September

October–December

Date unknown

Births

Guercino

January–June

July–December

Michael de Sanctis

Date unknown

Deaths

Pope Gregory XIV
John of the Cross
Pope Innocent IX

Date unknown