Which of these is considered to be an ancestor of Romulus and Remus?

In Greco-Roman mythology, Aeneas was a Trojan hero, the son of the prince Anchises and the goddess Aphrodite (Venus). His father was a first cousin of King Priam of Troy (both being grandsons of Ilus, founder of Troy), making Aeneas a second cousin to Priam's children (such as Hector and Paris).

He is a character in Greek mythology and is mentioned in Homer's Iliad. Aeneas receives full treatment in Roman mythology, most extensively in Virgil's Aeneid, where he is cast as an ancestor of Romulus and Remus. He became the first true hero of Rome. Snorri Sturluson identifies him with the Norse Æsir Vidarr.