Erok-El
From superman.nu: Supermanica
Erok-El was the first family member to take the surname of El. Kal-El II (Superman) and Jor-El II look very much like Erok. He was the son of Tamnu.
Erok's story was seen when Clark Kent was asked to get information on Superman's family tree. Clark also wanted to find out about his family so he went throughout a few galaxies with his cousin Kara Zor-El. They saw that he looked just like Erok (Kal-el did) and they honored the first El.
"Erok of the Star," the founder of the House of El (KC No. 3, Nov 1981: "The Race to Overtake the Past").
