Mors in Wikipedia
In Roman mythology, Mors is the personification of death and
equivalent to the Greek Thßnatos (lat. Thanatus). He is the
son of the goddess of night, Nox, and is the brother of the
personification of sleep, Somnus. Mors should not be confused
with Mars, the god of war, Pluto, the god of the underworld,
or Orcus, god of death and punisher of perjurers.
Mors is also the Latin word for "death" and is grammatically a
feminine gender noun.
In one story, Heracles (lat. Herculeus) fought Mors in order
to save his friend's wife. In other stories, Mors is shown as
a servant to Pluto, ending the life of a person after the
thread of their life has been cut by the Fates, and Mercury,
the messenger to the gods, escorts the dead persons soul, or
shade, down to the underworld's gate. - Wikipedia