No.
They are cousins. Heracles' father was Zeus, and Theseus' father (or half-father if you will) was Poseidon.
zeus
Hercules, Hercules' father was Zeus
The God from Spongebob SqaurePants
hercules hercules
Well, Zeus's dad was Kronos, if that is what you were asking
Athenas dad was none other than the king of the gods of olympus, Zeus
Aegeus, king of Athens.
Aegeus. Or Poseidon, depending on what version you go by.
Aegeus. Or Poseidon, depending on what version you go by.
Hercules, son of Zeus - nephew of Hades and brother of Persephone.
For Zeus, we have Ares, Athena, Apollo, Artemis, Aphrodite, and, Dionysus. For Poseidon we have Theseus, Triton, Polyphemus.