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Silvius, a MythSource painting
Roman

Silvius

The Posthumous Son · King of Alba Longa · Progenitor of the Silvian Line

01Identity

Silvius was destined to become king and father of kings in Alba Longa. He is the son of Aeneas and Lavinia, and the ancestor associated with the Alban royal succession. Unlike Romulus, who is identified as the founder of Rome, Silvius belongs to the earlier line of Alban rulers that carried Aeneas’s house forward.

Top questions
02Family

Parents above, children below, and the figure’s consorts named in between, the same family data as the fact box, laid out as a chart instead of a field list.

AeneasAscaniusLavinia
SilviusAnthemoneAscaniusEtias
Aeneas SilviusBrutus of Troy
03The names

Silvius Postumus

Silvius born after his father's death

SourceBullfinch Mythology - The Age of Fable

Silvius, Son of Aeneas

Silvius in the Virgilian genealogy

SourceGreek Myths & Tales

Silvius the Alban King

Silvius as a king of Alba Longa

SourceRoman Mythology

04The myths

1 myth, each traced to its primary text and corpus sources.

Lavinia fled into the woods after Aeneas died. She left the city that Aeneas had founded and named Lavinium after her. Among the trees, she gave birth to his son. Aeneas had already died when the child was born, so the boy became known as Aeneas’s posthumous son.

The child’s birth in the woods shaped his name. He received the name Silvius because he had been born among the trees, away from Lavinium and its people. His birth also connected him to both of his parents. Lavinia was counted as his mother, and Aeneas was counted as his father, even though he had died before the child’s birth.

Silvius therefore belonged to the line of Aeneas and Lavinia. His birth followed Aeneas’s death, but it did not remove him from Aeneas’s family. The woodland birth marked the child and gave him the name by which he was remembered.

In another telling, Lavinia did not give birth to Silvius as Aeneas’s son. That telling made Ascanius, Aeneas’s son, the father of Silvius instead. Silvius still carried the woodland name, but his place in the family changed. He became the son of Ascanius rather than the posthumous son of Aeneas.

The Birth of Silvius in the Woods, a MythSource painting of the scene

In the modern world

No modern rework confirmed yet.

3 sources· checked 2026-08-19

  1. 1Roman MythologyT1
  2. 2the ancient sourcesT1

    Quote

    Lavinia, after Aeneas’s death, bore Silvius in the woods, while another tradition made Ascanius his father.

    the ancient sources

  3. 3Greek Myths & TalesT1

The myths across MythSource where Silvius features, each on that figure’s page.

The film

The Underdrawing video on Silvius embeds here once it publishes.