Reading log

I just started a new book. It is called the Royal Ranger. It is the 12th book in the series. All of the other ones were really good and I was excited for this one. It started out with Will (the main character) catching a criminal in a bar. Then it switched over to the Princess and how she sneaks out of the castle. She got chewed out. And Hault and his wife Pauline have to go to a castle and meet the current king. Question: Were there really Ranger's in this time period?