As a mythology expert, I can tell you that Thanatos is indeed a figure from Greek mythology who is associated with death. However, he is not the only one, and his role can be a bit more nuanced than simply being the "god of death." In Greek mythology, Thanatos is personification of death, one of the children of Nyx, the goddess of night. He is often depicted as a winged figure carrying a sword or a bough of asphodel, a flower associated with the underworld.
Thanatos is known for his role in the stories where he comes to claim the souls of the deceased. However, it's important to note that in the broader context of Greek mythology, there are other figures who are also associated with death and the underworld, such as Hades, who is the god of the underworld itself, and the Moirai (Fates), who determine the manner and timing of a person's death.
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