Historical Events
- May 14 Dutch Council of State replaced by Council of Beroerten
Uraniborg Observatory
May 23 King Frederick of Denmark offers island of Hveen to astronomer and nobleman Tycho Brahe to build an Observatory
- May 29 Spanish army under Cristóbal de Mondragón conquers Zierik sea
Famous Birthdays
- May 27 Caspar Schoppe, German scholar and controversialist, born in Neumarkt in der Oberpfalz, Germany (d. 1649)
Famous Weddings
- May 1 Stefan Batory, the reigning Prince of Transylvania, marries Anna Jagiellon and they become the co-rulers of the Polish-Lithuanian Commonwealth.