Lionel Luthor

Lionel Luthor is the father of both Lex and Lena Luthor as well as the husband of Lillian. He passed away some number of years ago and his son inherited his company Luthorcorp. His son then went on to befriend Superman before he went and became insane and committed many crimes against humanity. His wife went on to be the head of Cadmus which declared war on Alien life. His daughter Lena went on to become the new head of the company and changed its name to L-Corp and befriended Supergirl.