Well, many Christian theologians will assert that evil was not created by God. But evil is not in the game. So I'm going to guess Montezuma.
the ocean?
Great Barrier Reef?
I only needed the second clue, which is about the polders and dikes I'm guessing while nether means beneath. I'm glad I didn't read the first clue first though because that might have thrown me off.
My turn
1st - I'm really old