An informative essay is one that consists of only factual information about the subject and no opinions. Personally I find informative quite boring since I love debating and such, but it is necessary. Well assuming that the five paragraphs include the introductory paragraph and concluding paragraph, it is safe to say that you only need to find 3 topics for the three body paragraphs.
Finding these topics can be quite easy. You just need to make sure that they are stated in the thesis statement in the intro. Personally, I would use background information (date of birth, birth place, childhood) for the first body paragraph, early accomplishments (minor things) for the second body paragraph, and finally the big and grand accomplishment (what they are known for) for the third and final body paragraph.
Of course this will require quite a bit of research. Make sure to cite your sources, and compliment your facts with commentary that explains the content (and doesn't give an opinion). Best of luck and I hope this helps!
