Why Jack?Why Jill?

So we all know the story of Jack and Jill, and how they when up a hill to fetch a pail of water, Jack fell down And Jill, well you know the rest. So this is a well known by almost every generation, and ethnicity of children to senior citizens, but what some of our younger generations dont realize is that this cute sweet little nursery rhyme is about the king and queen jack was killed and jill (the queen) came tumbling after. so next time you read this nursuery rhyme what will you think of?