- Stadhouder Prins Frederik Hendrik (Huis van Oranje) was from 1625 till 1647 sovereign of the Netherlands (also known as Republiek der Zeven Verenigde Nederlanden)
- In the year 1631: Source: Wikipedia
- May 18 » In Dorchester, Massachusetts, John Winthrop takes the oath of office and becomes the first Governor of Massachusetts.
- May 20 » The city of Magdeburg in Germany is seized by forces of the Holy Roman Empire and most of its inhabitants massacred, in one of the bloodiest incidents of the Thirty Years' War.
- June 17 » Mumtaz Mahal dies during childbirth. Her husband, Mughal emperor Shah Jahan I, will spend the next 17 years building her mausoleum, the Taj Mahal.
- June 20 » The Sack of Baltimore: The Irish village of Baltimore is attacked by Algerian pirates.
- September 17 » Sweden wins a major victory at the Battle of Breitenfeld against the Holy Roman Empire during the Thirty Years' War.
- October 10 » Thirty Years' War: An army of the Electorate of Saxony seizes Prague.
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When copying data from this family tree, please include a reference to the origin:
Frits Derksen, "Stamboom Derikx, Derksen en Heijnen", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-derksen/I8379.php : accessed December 4, 2022), "Cecilia Maechs (1631-????)".