Famous Birthdays
- May 8 Nicolaas Witsen, Dutch statesman and mayor of Amsterdam, born in Amsterdam (d. 1717)
- May 16 Dudley North, English financier and economist (wrote work advocating for free-trade), born in Westminster, England (d. 1691)
- May 28 Johann Weikhard von Valvasor, Slovenian polymath and natural historian, born in Laibach, Carniola (d. 1693)
Famous Weddings
- May 12 William II, Prince of Orange (14) marries English princess Mary Henrietta Stuart (9) at Whitehall Palace, London