My DD11 is a history buff and has recently gotten very into biographies. There should be a wide variety available in all forms. She is reading the "Who Was" series (nice font, big print so quite accessible despite her dyslexia) but you should be able to find a variety of biographies in audio form too. Just last night she finished Elvis Presley and before that it was Queen Elizabeth I, Albert Einstein and Alfred Hitchcock. There is also a "What Was" series and she just started reading about Pompeii. We load books onto her phone through our local public library (using Overdrive) so she can listen on the bus to school and also take out books on CD that we all listen to in the car but those have mostly been fiction.
