What day of the week was June 21, 1621?

The day of the week June 21st, 1621 fell on was a Monday.

Louis III the Cardinal of Guise (b. 1575) died on this day in 1621. As did Kryštof Harant the Czech soldier and composer (b. 1564) .

Execution of 27 Czech noblemen on the Old Town Square in Prague as a consequence of the Battle of White Mountain.