Challenge. Found all 7 religions. Isabella must be a rival.

one time Isabella was being extra bitchy and mean so everyone hated her so when I declared war on her she decided to declare war on the English as well because they were my friends. Elizabeth being the smart leader she is had 7 defensive pacts with every other person. including the Ghengis Khan and Julius Ceaser. She was completely destroyed about 10 turns later. It was beautiful.

Also once barbarians managed to destroy the entire Greek civilization. I wasn't too surprised when the message that the Greeks have been vanquished appeared, but was really shocked when I saw Athens and Sparta under control of the Barbarians. I then captured them and they were two of my best cities