RENE CHARTRAND was born in Montreal and educated in Canada, the United States and the Bahamas. A senior curator with Canada's National Historic Sites for nearly three decades, he is now a freelance writer and historical consultant. He has written numerous articles and books including over 30 Osprey titles. He lives in Gatineau, Quebec, with his wife and two sons. Donato Spedaliere was born in Lausanne, Switzerland, and moved to Tuscany, Italy, at the age of ten, where he still lives today. He has studied in Florence, and served in the Italian Army as a paratrooper. Since 1995, he has worked as a professional freelance illustrator for publishers in Italy and abroad. His artworks are to be found in many books, encyclopaedias, magazines, and museum collections.

Recently he has worked on two movies, providing concept designs and matte paintings, as well as acting as the supervisor of the special effects team for the film Obulus.