Janus - the Two-headed god - Roman myth
Janus was the two-headed god. The two heads faced opposite direction
s. Janus was the god of the doorways and entrances.
He could see both the past and the future.
Images of Janus were often found on city walls. The double gated temple of Janus in Rome was always kept closed during times of peace. The gates of Janus opened only when Rome went to war. This was to ensure immediate help from Janus when needed.
The month of January is named after Janus.
Bust of Janus, Vatican Museum,Rome The twin brothers Romulus and Remus had been thrown into the River Tiber. Their great uncle thought the two boys could come to claim the throne as adults and he wanted to get rid of them.
Romulus and Remus - Roman myth

The father of the two boys was the war god named Mars. He sent a wolf to save his sons. The wolf nursed the twin boys. Later a shepherd found the twins and raised them as his own.
Freyja and her Two Cats - Norse Mythology
The goddess Freya was a stunningly beautiful goddess in Norse myth
Freyja was the goddess of love.
She mastered spells and magic.
Freya rode across the sky in
a carriage pulled by two cats.
Odin - Two Ravens - Two Wolves - Norse Mythology
Odin was the chief god in Norse myth, often called the Allfather.
He owned two ravens. Their names were Hugin and Munin. Hugin means "thought" and Munin means "memory".
The two ravens flew from Asgard (the home of the gods) every morning. They would return each evening reporting to Odin all that they had seen and heard.
The chief god Odin also had two wolves
named Freki and Geri.
Thor god of thunder and his Two Goats
Thor was the god of thunder and the son of Odin.
He owned a magic hammer called Mjollnir.
Thor rode across the sky in a chariot pulled by two goats. The names of the two goats were Tooth-grinder and Tooth-gnasher.
Thursday is named after Thor the god of thunder.