Germanic Isis

On the identity of the "naval" Isis mentioned by Tacitus in "Germany" a real quarrel has opened up between those who consider it a Roman import -- which would have its reflection in the practice of β€œNavigium Isidis” - e who, like Georges DumΓ©zil, considers it connected to an original Germanic goddess, Freyja or Nerthus. But, beyond the denominations, the category to which the goddess can be ascribed is the broadest one of the Great Goddesses of the archaic period, including Rhea and Cybele.