January 20 » The Mexican city of León is founded by order of the viceroy Don Martín Enríquez de Almanza.
March 8 » Spanish explorer Diego García de Palacio first sights the ruins of the ancient Mayan city of Copán.
July 11 » While exploring the North Atlantic Ocean in an attempt to find the Northwest Passage, Martin Frobisher sights Greenland, mistaking it for the hypothesized (but non-existent) island of "Frisland".
August 8 » The cornerstone for Tycho Brahe's Uraniborg observatory is laid on the island of Hven.
November 4 » Eighty Years' War: In Flanders, Spain captures Antwerp (after three days the city is nearly destroyed).
November 8 » Eighty Years' War: Pacification of Ghent: The States General of the Netherlands meet and unite to oppose Spanish occupation.
When copying data from this family tree, please include a reference to the origin: Keith Swartz, "Swartz/Rand Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/swartz-rand-family-tree/I88898571.php : accessed May 13, 2025), "Robert SEMPILL 3rd Lord Sempill (1502-1576)".
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