Historical Events Oct 20 Battle at Coultras: Henri van Navarra beats Catholic League Oct 31 Leiden University Library opens its doors after its founding in 1575 Events in 1587 Famous Deaths Oct 19 Francesco I de' Medici, Grand Duke of Tuscany (b. 1541) Sep 1587 History by Year Nov 1587 What Happened in 1587 Execution of Mary Queen of ScotsFebruary 8, 1587 What Happened To America's Lost Colony?August 18, 1587