January 16 » Forces of the Maratha Empire defeat a 5,000-strong army of the Durrani Empire in the Battle of Narela.
March 14 » Admiral Sir John Byng is executed by firing squad aboard HMSMonarch for breach of the Articles of War.
May 6 » Battle of Prague: A Prussian army fights an Austrian army in Prague during the Seven Years' War.
June 18 » Battle of Kolín between Prussian forces under Frederick the Great and an Austrian army under the command of Field Marshal Count Leopold Joseph von Daun in the Seven Years' War.
November 5 » Seven Years' War: Frederick the Great defeats the allied armies of France and the Holy Roman Empire at the Battle of Rossbach.
December 31 » Empress Elizabeth I of Russia issues her ukase incorporating Königsberg into Russia.
Day of death July 30, 1787
The temperature on July 30, 1787 was about 18.0 °C. There was 330 mm of rainWind direction mainly west-southwest. Weather type: betrokken. Source: KNMI
January 25 » Shays's Rebellion: The rebellion's largest confrontation, outside the Springfield Armory, results in the killing of four rebels and the wounding of twenty.
May 25 » After a delay of 11 days, the United States Constitutional Convention formally convenes in Philadelphia after a quorum of seven states is secured.
June 20 » Oliver Ellsworth moves at the Federal Convention to call the government the 'United States'.
September 28 » The Congress of the Confederation votes to send the newly-written United States Constitution to the state legislatures for approval.
October 1 » Russians under Alexander Suvorov defeat the Turks at Kinburn.
October 29 » Mozart's opera Don Giovanni receives its first performance in Prague.
When copying data from this family tree, please include a reference to the origin: W. Rovers, "Family tree Ro(o)vers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_rovers/I13312.php : accessed February 13, 2026), "Petronella Geertsse Martens (1731-1787)".
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