The Great Northern Crusade first appeared in the 2012 reference guide The Essential Guide to Warfare, in a map depicting the Crusades. Named the "Great Northern Crusade" on the map and legend, it also states that the Crusade was the 7th in parentheses.
The Great Northern Crusade first appeared in the 2012 reference guide The Essential Guide to Warfare, in a map depicting the Crusades. Named the "Great Northern Crusade" on the map and legend, it also states that the Crusade was the 7th in parentheses.
- The Essential Guide to Warfare