The very nature of public records, starting out as the king's personal records, means there is a lot of material that relates to royalty. Though there are few official documents that reveal much about the private persona of the monarchy, there are still some very interesting items.
Warfare is another rich vein of public records.
They can give resonance to the effects wars had at the time and they show how advances in technology were forced along with the need for more and more weapons. From the late 18th century, the service records of some army and navy pensioners even gave a description of what the servicemen looked like. Fascinating reading, no more so than for the individual researching their family tree. Also records for trials for treason have information on Guy Fawkes, Anne Boleyn and Sir Thomas More. There are records dealing with the famous criminals, like Oscar Wilde and the not so famous.