On January 6th 1540 King Henry VII married Anne of Cleves who would become the fourth of his famous six wives.
Anne of Cleves' marriage was the shortest, lasting only until July of the same year. Still, she fared better than Anne Boleyn (mother of Elizabeth I) and Catherine Howard, both of whom were beheaded.
Although Henry VIII is famous for having six wives, this is technically not true. Anne's marriage, like those of Catherine of Aragon, Anne Boleyn and Catherine Howard, to Henry VIII were all annulled. An annulment is retroactive, unlike a divorce. Once a marriage is annulled, it is considered to have never taken place at all. So Henry legally only had three wives.
Image: Hans Holbein the Younger (1497/1498–1543) [Public domain], via Wikimedia Commons (commons.wikimedia.org/wiki/File:Anne_of_Cleves,_by_Hans_Holbein_the_Younger.jpg)