Cornelius

From Fire Emblem Wiki

Cornelius is a non-playable character from Fire Emblem: Ankoku Ryū to Hikari no Tsurugi. He was the late king of Altea, and the father of Marth and Elice and husband of Liza, Marth's mother. Cornelius tried to fight against the invading forces of Durhua with Anri's sword, Falchion, but was killed in battle with Gharnef's Imhullu spell.

In the Fire Emblem OVA, Cornelius' character is slightly expanded on. He is shown to be severely strict of Marth's training so he can live up to being Anri's descendant. He doesn't approve of Marth's tenderness in regards to this, and even hits Marth across the face for not taking the life of an animal during hunting. His death at the hands of Gharnef is shown, with him sending Jagen away to protect Marth, a switch from the game where it was in fact, Cain who was sent to save Marth, Jagen having already been at the castle.