•Dates they lived
•What they are famous for
You may also want to add more detail about their success / failure, their children and the legacy they left for England. The work can be done using a computer or by hand.
The best ones will be displayed (their authors will be rewarded) so you might be best looking into a less well known person as I can only display one King Henry VIII and remember, you need to keep all the information on a page of A4.