Germanic paganism was a form of paganism. In the the Early Middle Ages, the ancient Germanic belief system was still dominant in Scandinavia, the Low Countries and German-speaking countries. A pantheon of gods under the wise warrior Odin (or Wodan) ruled all the branches of the world tree, Yggdrasil. The other two main gods were Thor (Thunar), friend to mankind, and Frey, god of fertility.