Mercury is the name of the roman gods messenger
Greco-Roman mythology.
Apollo's name remains the same in Roman mythology. He is known as Apollo in both Greek and Roman mythologies.
Mercury is the Roman name for the Greek god Hermes. He is the god of thieving, and the messenger of the gods.
the roman name for aphrodite is venus.
Helios was the Greek name. His name was Sol in Roman mythology.
As far as I am concerned, there is no Roman name for Asgard, because Asgard is Norse mythology, and really has no counterpart like Greco-Roman mythology.
Morpheus' Roman name is the same as it is in Greek mythology.
Roman mythology
Jupiter got its name from the Roman God named Jupiter. He was the king of the Roman gods.
Jupiter's wife in Roman mythology is Juno. Juno was the queen of the gods in Roman mythology and the sister and wife of Jupiter.
Mercury's Roman name is Mercury. And his Greek name is Hermes.