Non PC Comics - Star Fox: Marvel Eros is The youngest son of A'lar Mentor, and is Thanos' younger brother. Eros is also an Eternal and Avenger. Origin: Approximately 750,000 years ago

15 Facts About Eros or Starfox. An Eternal Who is Also Thanos' Younger Brother

Eros (Earth-616), Marvel Database

Who Is Starfox? Thanos' Brother Eros in Eternals Explained

Eros (Earth-616), Marvel Database

15 Facts About Eros or Starfox. An Eternal Who is Also Thanos' Younger Brother

Thanos' Younger Brother Starfox is Even MORE Dangerous

Harry Styles' Eros from Eternals has one of the most disturbing Marvel Comics histories

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Harry Styles' Eros from Eternals has one of the most disturbing Marvel Comics histories