Probably the Greek culture.
Because they are gods and goddesses of different cultures.
Thecnically the Greeks didnt have any 'ideas' about the gods. Greek, Roman and Egiptian gods all originated in anchent Sumaria. All those cultures share the same gods and goddesses as well as their idea of creation, they just have different names for them.
I will say yes. Since the roman god came from the Greek Gods.
Roman culture was primarily shaped by the Etruscans, Greeks, and Carthaginians. The Etruscans influenced Roman architecture, religious practices, and social organization. Greek culture contributed significantly through literature, philosophy, art, and the adoption of the pantheon of gods. Additionally, interactions with the Carthaginians, especially during the Punic Wars, impacted Roman military strategy and trade practices.
Roman gods were largely influenced by earlier mythologies, especially Greek, where they were adapted and renamed. The Romans initially worshipped a pantheon of deities associated with natural forces, household, and agriculture. Over time, as Roman culture evolved, gods were created or integrated to embody various aspects of life and governance, reflecting the values and beliefs of Roman society. Their creation often involved the merging of local spirits and deities with those from other cultures encountered through conquest and trade.
Roman religious beliefs were influenced by Etruscan and Greek cultures in ways such as adopting the Etruscan idea of gods in human form, honoring the emperor as a god, and always expected to honor gods in a public ceremonies.
The constellations were named by various ancient cultures, including the Greeks, Romans, Egyptians, and Babylonians. Each culture had its own myths and stories associated with the patterns of stars in the night sky, leading to the creation of different constellation names and interpretations.
Roman Mythology was based originally on the beliefs of their neighbors, the Latins, and the Greeks. As their empire expanded, their beliefs expanded to include the gods of the cultures they conquered.
He was the messenger of the gods and the god of trade and protection of travelers and medical things In Greek he is called Hermes and in both cultures you can recognise him by his distinctive staff which has 2 crossed serpents.
Both Greek and Roman gods are the same in essence, but have different aspects. Roman gods were taken from Greek gods, but tend to be more warlike and disciplined. Just like the Greek and Roman cultures, the Roman gods were more warlike, disclipined and honorable. The Greek gods on the other hand, tended to merge into the more artistic creative side. However, the main similarity between Greek and Roman gods is simply this: They are both the gods of whatever they were in the other culture. For example, Hera from Greek myths, is still the goddess of marriage in her Roman aspect, or Juno. Another example is Aphrodite, she is still the goddess of love in her Roman aspect, Venus.
Apollo's name in other cultures would be the same! That's because the greek and roman made the gods and goddesses.
The ruler of the Roman Gods is Jupiter