Seyg-El is the father of Jor-El, Nim-El and Zor-El, making him the grandfather of Superman and Supergirl. He was a member of the House of El and leader of the Kryptonian Science Council on Krypton before it was destroyed. Seyg-El was created by John Byrne and Mike Mignola, first appearing in World of Krypton (Volume 2) #3. (1988) His name is based on creator Jerry Siegel.

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