On This Day

What Happened on June 20, 1566

Famous Birthdays


Person of interestSigismund III Vasa

Sigismund III Vasa, King of Poland and Grand Duke of Lithuania (1587-1632) and King of Sweden (1592-99), born in Gripsholm Castle, Sweden (d. 1632)


1566 Highlights

About June 20, 1566

Day of the Week: Thursday
How Long Ago? 454 years and 7 months
Leap Year: No

Star Sign: Gemini