When did King Charles II return to Navarre?

Context: King Charles II returned to Navarre in November 1361, leaving his wife and son behind in France. When in January 1363 it was her turn to move to Navarre, Queen Joan left Charles in the custody of his aunt Blanche, sister of his father and widow of his maternal great-grandfather King Philip VI of France. Charles was reunited with his mother when she returned to France in December 1365, and the following August Charles set foot in his father's kingdom for the first time.

Answer: King Charles II returned to Navarre in November 1361.