He was a brother of Hades, Zeus, and many of the other first twelve Olympians.
Yes, he is one of the big three hence Zeus and Hades are his brothers, and all the gods are pretty much inter-related somehow.
Some Gods not all though.
Figure it out.
yes
Yes, Athena is the daughter of Zeus who is the brother of Poseidon, thus Poseidon is the uncle of Athena.
They are not blood related but are in the form of being a hero for the gods
Athena, the Greek god of wisdom, is related to the other gods. such as Zeus, hades, Poseidon etc.
Poseidon is the brother of Zeus. Zeus is the god of the sky and the king of all gods. Poseidon is the god of the water and earthquakes, he is a very powerful god. He and eleven other gods are the twelve main gods even though there are many other gods.
Poseidon is a male and therefore a god. Other examples of greek gods are Zeus, Hades, and Apollo. Female "gods" are called goddesses.
Poseidon fought with other gods: Zeus himself, Hera, Dionysus, Helius
Um your on your own, pal.
Yes, Poseidon married nereu's daughter, the sae-nymph amphitrite.