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.
December 5 » Seven Years' War: Battle of Leuthen: Frederick II of Prussia leads Prussian forces to a decisive victory over Austrian forces under Prince Charles Alexander of Lorraine.
December 31 » Empress Elizabeth I of Russia issues her ukase incorporating Königsberg into Russia.
Day of marriage July 12, 1778
The temperature on July 12, 1778 was about 19.0 °C. Wind direction mainly northwest. Weather type: zeer betrokken. Source: KNMI
February 6 » New York became the third state to ratify the Articles of Confederation.
February 14 » The United States flag is formally recognized by a foreign naval vessel for the first time, when French Admiral Toussaint-Guillaume Picquet de la Motte renders a nine gun salute to USSRanger, commanded by John Paul Jones.
May 12 » Heinrich XI, count of the Principality of Reuss-Greiz, is elevated to Prince by Joseph II, Holy Roman Emperor.
June 18 » American Revolutionary War: British troops abandon Philadelphia.
August 26 » The first recorded ascent of Triglav, the highest mountain in Slovenia.
September 7 » American Revolutionary War: France invades Dominica in the British West Indies, before Britain is even aware of France's involvement in the war.
Day of burial September 15, 1799
The temperature on September 15, 1799 was about 12.0 °C. Wind direction mainly west by south. Weather type: zeer betrokken donder bliksem. Source: KNMI
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De Republiek der Verenigde Nederlanden werd in 1794-1795 door de Fransen veroverd onder leiding van bevelhebber Charles Pichegru (geholpen door de Nederlander Herman Willem Daendels); de verovering werd vergemakkelijkt door het dichtvriezen van de Waterlinie; Willem V moest op 18 januari 1795 uitwijken naar Engeland (en van daaruit in 1801 naar Duitsland); de patriotten namen de macht over van de aristocratische regenten en proclameerden de Bataafsche Republiek; op 16 mei 1795 werd het Haags Verdrag gesloten, waarmee ons land een vazalstaat werd van Frankrijk; in 3.1796 kwam er een Nationale Vergadering; in 1798 pleegde Daendels een staatsgreep, die de unitarissen aan de macht bracht; er kwam een nieuwe grondwet, die een Vertegenwoordigend Lichaam (met een Eerste en Tweede Kamer) instelde en als regering een Directoire; in 1799 sloeg Daendels bij Castricum een Brits-Russische invasie af; in 1801 kwam er een nieuwe grondwet; bij de Vrede van Amiens (1802) kreeg ons land van Engeland zijn koloniën terug (behalve Ceylon); na de grondwetswijziging van 1805 kwam er een raadpensionaris als eenhoofdig gezag, namelijk Rutger Jan Schimmelpenninck (van 31 oktober 1761 tot 25 maart 1825).
April 16 » French Revolutionary Wars: The Battle of Mount Tabor: Napoleon drives Ottoman Turks across the River Jordan near Acre.
June 18 » Action of 18 June 1799: A frigate squadron under Rear-admiral Perrée is captured by the British fleet under Lord Keith.
July 12 » Ranjit Singh conquers Lahore and becomes Maharaja of the Punjab (Sikh Empire).
July 15 » The Rosetta Stone is found in the Egyptian village of Rosetta by French Captain Pierre-François Bouchard during Napoleon's Egyptian Campaign.
September 19 » French Revolutionary Wars: French-Dutch victory against the Russians and British in the Battle of Bergen.
September 26 » War of the 2nd Coalition: Franco-Swiss troops defeat Austro-Russian forces, leading to the collapse of Suvorov's campaign.
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I12423.php : accessed February 15, 2026), "Dorothea Westerveld (1757-1799)".
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