On this day in Tudor history, 28th October 1570, in the reign of Queen Elizabeth I, Ivan IV of Russia wrote a rather rude letter to the English queen.
Ivan IV, more commonly known as Ivan the Terrible, was upset with Elizabeth I's reaction to his idea of a political alliance, an agreement to help each other if their lives were in danger, and wrote the letter while he was still angry.
His rude letter must have angered Elizabeth, but unlike Ivan, she waited to reply until her anger had subsided.
Find out what Ivan the Terrible and Elizabeth I wrote in their letters to each other, and how they came to be corresponding in the first place...
Here's the video I mentioned: