Yes due to the fact that Poseidon is god and even if it is diluted with human blood, they would still be half-god making them a demi-god. However, if Poseidon had a child with another god then the child would be born a god.
Triton
Poseidon is the son of Rhea and Cronus.
No. Ulysses (Odysseus) is not a demigod because he was not born as the offspring of a human and a god. The closest he gets to godhood would be the fact that he is the great-grandson of Mercury (Hermes) on his maternal grandfather's side.
No. Perseus was the son of Zeus and Danae. Sorry.
ya
Heracles, a demigod son of Zeus.
Yes. A son of Zeus.
Because, Odysseus blinde Poseidons son. Who was the cyclops.
Any son of Poseidon and a mortal woman is a demigod, as Polyphemus, Orion and Theseus. They did not belong to the sea. God of the sea - yes. Demigod of the sea - no.
A demigod in Greek mythology was a hybrid, who was the child of both a god and a mortal. If two gods had a son together the result would also be a god.
Heracles or Hercules
Yes. I know a demigod, and their are thousands, if not more worldwide. I am actually a god, son of hestia and poseidon