March 4 » The Constitutional Act of 1791 is introduced by the British House of Commons in London which envisages the separation of Canada into Lower Canada (Quebec) and Upper Canada (Ontario).
May 15 » French Revolution: Maximilien Robespierre proposes the Self-denying Ordinance.
July 17 » Members of the French National Guard under the command of General Lafayette open fire on a crowd of radical Jacobins at the Champ de Mars, Paris, during the French Revolution, killing scores of people.
August 4 » The Treaty of Sistova is signed, ending the Ottoman–Habsburg wars.
August 7 » American troops destroy the Miami town of Kenapacomaqua near the site of present-day Logansport, Indiana in the Northwest Indian War.
September 30 » The first performance of Mozart's opera The Magic Flute takes place two months before his death.
Christening day April 10, 1791
The temperature on April 10, 1791 was about 8.0 °C. Wind direction mainly north-northeast. Weather type: zeer betrokken. Source: KNMI
January 2 » Big Bottom massacre in the Ohio Country, North America, marking the beginning of the Northwest Indian War.
January 25 » The British Parliament passes the Constitutional Act of 1791 and splits the old Province of Quebec into Upper Canada and Lower Canada.
March 2 » Long-distance communication speeds up with the unveiling of a semaphore machine in Paris.
May 15 » French Revolution: Maximilien Robespierre proposes the Self-denying Ordinance.
August 22 » Beginning of the Haitian Slave Revolution in Saint-Domingue, Haiti.
August 26 » John Fitch is granted a United States patent for the steamboat.
Day of marriage May 9, 1813
The temperature on May 9, 1813 was about 18.0 °C. Wind direction mainly north. Weather type: half bewolkt regen zwaar donder weerlicht. Special wheather fenomena: bliksem. Source: KNMI
This page is only available in Dutch.
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).
February 7 » In the action of 7 February 1813 near the Îles de Los, the frigates Aréthuse and Amelia batter each other, but neither can gain the upper hand.
February 20 » Manuel Belgrano defeats the royalist army of Pío de Tristán during the Battle of Salta.
June 6 » The Battle of Stoney Creek, considered a critical turning point in the War of 1812. A British force of 700 under John Vincent defeats an American force twice its size under William Winder and John Chandler.
July 5 » War of 1812: Three weeks of British raids on Fort Schlosser, Black Rock and Plattsburgh, New York commence.
August 23 » At the Battle of Großbeeren, the Prussians under Von Bülow repulse the French army.
December 30 » War of 1812: British soldiers burn Buffalo, New York.
Day of death July 25, 1866
The temperature on July 25, 1866 was about 18.3 °C. The air pressure was 7 kgf/m2 and came mainly from the northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 59%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
In The Netherlands , there was from February 10, 1866 to June 1, 1866 the cabinet Fransen van de Putte, with I.D. Fransen van de Putte (liberaal) as prime minister.
From June 1, 1866 till June 4, 1868 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Heemskerk with the prime ministers Mr. J.P.J.A. graaf Van Zuijlen van Nijevelt (AR) and Mr. J. Heemskerk Azn. (conservatief).
May 2 » Peruvian defenders fight off the Spanish fleet at the Battle of Callao.
May 5 » Memorial Day first celebrated in United States at Waterloo, New York.
June 2 » The Fenians defeat Canadian forces at Ridgeway and Fort Erie, but the raids end soon after.
June 7 » One thousand eight hundred Fenian raiders are repelled back to the United States after looting and plundering the Saint-Armand and Frelighsburg areas of Canada East.
October 19 » In accordance with the Treaty of Vienna, Austria cedes Veneto and Mantua to France, which immediately awards them to Italy in exchange for the earlier Italian acquiescence to the French annexation of Savoy and Nice.
December 12 » Oaks explosion: The worst mining disaster in England kills 361 miners and rescuers.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I192983.php : accessed October 17, 2026), "Johannes Piers de Groot (1791-1866)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.